EP0342420A2 - 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 locking device on one or at least three wings including sliding folding door or sliding folding window with a fixed frame. The latter as well as the frames of the individual sashes are made up of 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 relevant spar the necessary strength that it 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 step, the stiffening profiles cannot be led into the corner of the frame. The result of this is that the frames can essentially only take loads in the plane of the pane.

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 then grazes down in the rebate or rail area.

The object of the invention is to provide a locking device of the type described above, with which the frames of a sliding folding door or a sliding folding window, in particular in the case of plastic or aluminum production, are better protected against twisting when opened when the first leaf is open .

To solve this problem, the invention proposes that the locking device is designed according to the preamble of claim 1 in accordance with the characterizing part of this claim. With the help of the first releasable latching device, the wing of the folding door or the folding window, which is pivotably articulated on the second wing and is normally the first to be opened, and which can be rotated about 180 ° relative to the second wing, approximately at the end of its 180 ° opening movement set second wing. This means that its center of gravity is relatively close to the plane of the second wing, which means that the moment resulting from its weight and acting on the connecting bearings of the neighboring doors has a very low lever arm and consequently assumes a minimum value. According to the invention, this first latching device is controlled approximately according to a 180 ° opening rotation angle in the latching sense or snaps directly into place by this movement. The disengagement can be achieved by manual operation or directly by the start of the closing and turning movement of the first leaf.

The second wing is locked against the fixed frame via the second latching device. This locking can be released by the opening movement of the first wing, at the end of the 180 ° opening movement. This means that the rotary opening end movement of the first wing can be exploited in two ways, namely to lock the first and second wings on the one hand and to unlock the two wing of the fixed frame on the other hand. If, in this way, the first and second sashes form a package that is free relative to the fixed frame, one can also open this together with the package from the first and second sashes after unlocking the third wing. Preferably, the connecting pivot bearings between adjacent wings are alternately attached to the inside and outside of the frame, whereby the door can be folded and moved as a package to the wall-side vertical spar 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. When 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 rotary movement of the first leaf, the first leaf must simply be rotated in the closing direction when the second leaf is in the closed position, which of course does not take place without releasing the first latching device.

It is undoubtedly advantageous if the closing rotary movement of the first leaf engages the locking of the second locking device works, 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.

A further development of the invention provides that 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 disengaging actuating movement of the second latching device. So as long as the first wing is closed or only opened and folded back so far that it is at an acute angle to the second wing, the latter is fixed relative to the fixed frame. However, if the first leaf is opened by approximately 180 ° and is thus approximately parallel to the second leaf, this leads to an actuation of the second latching device in a disengaging sense. 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 under forced control when the second leaf is (again) in its closed position and the first leaf in 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-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.

Another embodiment of the invention is that the first locking member is designed in the manner of a cutter. Snappers automatically move 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 member does not necessarily have to be a trapper even in the case of training Be ball, rather a slidably mounted, spring-loaded locking member can be used. In addition, appropriate slants should be used to engage and disengage with reasonable effort. On the other hand, this first latching device should also hold the two wings together well. The engagement and disengagement movement of the first locking member 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 latching devices for fixing the first wing opened by 180 ° relative to the second wing, both need not necessarily go into the latching position 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.

This is an important variant of the invention before that the third locking device is controllable 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, the action of the third latching device when the second wing is locked, even with a cutter or the like, is not absolutely necessary.

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. 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 changes from its latched to a latched switchover position in which it releases the first wing .

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

A further 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 each other 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, in particular the oblique slot on the second or third latching element and the bolt or the like in each case being located 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 the use of other known devices for this reversal of movement, for example control via tabs, is also possible.

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 locking receptacle 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 projecting, downward-pointing profile web of the upper crossbar of the fixed frame can be used for locking purposes. Otherwise, the wings 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. The arrangement can, however, also be reversed, that is to say 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. It enables the entire locking device to 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 zusammengefalteten 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 geringfügig 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 opened and folded wings,
• 4: on an enlarged scale a section at the 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 denoted 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. 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 pushed aside folded package to the hinge-side vertical spar possible, 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 slidably 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), via which the wings 4 and 5 can be pressed individually against the fixed frame, for example locking bars which move up and down lock into the fixed frame 1.

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 seat 21. The second latching device 18 comprises a second latching member 22 and a second latching seat 23. The third latching device 19 consists of the third latching member 24 and the third latching seat 25. According to FIG. 7, the first latching seat 21 and the third latching seat 25 are designed as a common latching seat and 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 together, protrudes against the first wing and comes to lie directly next to the common component 26. From Fig. 1 it can be seen that the control housing 27 is preferably attached to the upper corner of the second wing 4 associated with the third wing 5. As a result, the common component 26 lies close to the upper wing corner of the first wing 3 on the closing side.

The first latching device 17 is designed in the manner of a cutter. Your spring-loaded locking member 20 can be moved in the horizontal direction parallel to the wing plane and 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, hits the first latching member 20. It occurs against the resistance of a load spring into the interior of the control housing 27 and with the wings 3 and 4 in parallel position in the first catch recording 21 a.

The third latching device 19 is in a disengaged or ineffective position when the second wing 4 is closed. 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 if the pusher 29 is moved in the direction of the arrow 31. The latter is the case according to FIG. 5 when the second wing 4 is opened. This releases the pusher 29 inserted into the control housing 27 against the resistance of a load spring 33 when the leaf 4 is closed, and it can move in the direction of the arrow 31 relative to the control housing 27. 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 inclined slot 36, which extends in particular at 45 ° to the wing plane, and a bolt 37 which is displaceably guided therein. The inclined slot is located on the third latching element 24 and, consequently, the bolt 37 is held on the pusher 29. When the second leaf 4 is closed, the push-in lever 29 rests against the upper cross member 34 of the fixed frame 1, ie it is pressed by the closing movement of the second leaf 4, which causes the third latching device 19 to disengage. In the embodiment, the pusher 29 is applied one leg of the guide rail 14 directly or indirectly.

The second locking device 18 is also equipped with a pusher, which is designated 38. It can be inserted 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 which can be displaced therein. Both the loading spring 33 of the third latching device 19 and the loading spring 39 of the second latching device 18 each endeavor to do so 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 approximately a parallel position to the second wing 4, wherein it is fixed with the aid of the first locking device 17 with respect to the second wing 4.

Both the fixed frame 1 and the wings 2, 4 and 5 in the exemplary embodiment consist of profile bars, preferably plastic profile bars, the cross-sectional shapes of which are designed according to 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 into a corresponding chamber of the profile bars of the wings 3, 4 and 5. However, the stiffening profiles, especially in the case of plastic profiles, do not extend into the wing corners because they would hinder the connection there, for example by ultrasonic welding.

Claims (16)

1. Locking device on one or at least three wings (3, 4, 5) comprising sliding folding door (2) or sliding folding window (2) with a fixed frame (1), characterized by at least one, from a first Locking member (20) and a first locking receptacle (21), first releasable locking device (17), wherein the first locking receptacle (21) is attached to the first wing and the first locking member (20) to the second wing (4) or vice versa and wherein the the first locking device (17) can be locked or controlled by approximately the 180 ° final movement of the first wing (3), further characterized by a second locking device (18) consisting of a second locking member (22) and a second locking receptacle (23), wherein there is in particular the second locking member (22) on the second wing (4) and the second locking receptacle (23) on the fixed frame (1), and that the second locking device (18) can be controlled by the opening movement of the first wing (3), whereby the effect loose position is assigned approximately the 180 ° open position of the first wing (3). 2. Apparatus according to claim 1, characterized in that the second latching device (18) can be actuated in the disengaging direction by the first wing (3), the opening-end movement of the 180 ° opening rotary movement simultaneously being a disengaging actuating movement of the second latching device (18) is. 3. Apparatus according to claim 2, characterized in that the second latching device (18) has an in the path of movement of the first wing (3) projecting actuator (38) which is coupled to the second locking member (22). 4. The device according to at least one of the preceding claims, characterized in that the first latching member (20) is designed in the manner of a tractor and is slidably mounted in a control housing (27) of the second wing (4), the first latching receptacle (21st ) on the first wing (3). 5. The device according to claim 4, characterized by a horizontal or vertical, approximately parallel to the wing plane engaging and disengaging movement of the first locking member (20). 6. The device according to at least one of the preceding claims, characterized by a third, from a third locking member (24) and a third locking receptacle (25) existing locking device (19) for locking coupling of the ge by about 180 ° opened the first wing (3) to the second wing (4). 7. The device according to claim 6, characterized in that the third latching device (19) controllable by an initial opening movement of the second wing (4) in the locking direction and the closed second wing (4) assigned the unlocked position of the third latching device (19) and that the third latching device (19) has an actuator (29) coupled to the third latching member (24), which projects beyond the second wing (4) against the fixed frame (1) and is closed when the second wing (4) is closed Disengage switch position assumes. 8. The device according to at least one of claims 3 to 7, characterized in that the actuator (38) for the second locking member (22) and / or the actuator (29) for the third locking member (24) or a spring-loaded pusher each load spring (33, 39) loads the associated latching element (24, 22) in the latching direction at least when the pusher is pressed in. 9. The device according to claim 8, characterized in that the disengaging movement (38) of the second locking member (22) and its associated pusher (38) and / or the third locking member (24) and its associated pusher (29) are directed approximately perpendicular to each other and each locking member is connected to its pusher via a coupling device (35, 41). 10. The device according to claim 9, characterized in that the or each coupling device (35, 41) consists of an oblique slot (36, 42) and an engaging bolt (37, 43) or the like., In particular the oblique slot on the second or third latching element (22, 24) and the bolt or the like in each case on the associated pusher (29, 38). 11. The device according to claim 10, characterized in that the pusher (29, 38) and the second and third locking member (22, 24) or one or each with the second wing (4) connected to the control housing (28) or the like. are displaceably mounted, and that the second and third latching devices (18, 19) have a common control housing (27) or the like connected to the second wing (4). 12. The apparatus according to claim 11, characterized in that the second locking receptacle (23) on the upper cross member (14) of the fixed frame (1) and the control housing (27) or the like. On the upper cross member of the second wing (4), in particular is arranged in the area of the upper corner assigned to the third wing (5). 13. The apparatus according to claim 12, characterized in that the second latching receptacle (23) is formed by an upper guide rail (14) or running rail of the fixed frame (1). 14. The device according to at least one of claims 6 to 13, characterized in that the third locking member (24) is displaceable approximately perpendicular to the second locking member (22) parallel to the plane of the second wing (4), the third locking member (24) in particular is displaceable approximately in the horizontal or vertical direction. 15. The apparatus according to claim 14, characterized in that the third latching receptacle (25) is located on the first wing (3) and it has a latching nose (28), bar or the like which is engaged by the third latching member (24) in the latching position , wherein the first and third latching receptacles (21, 25) are formed by a common component (26) or are attached thereto. 16. The device according to at least one of claims 6 to 15, characterized in that all latching members (20, 22, 24) can be locked and unlocked parallel to one another in an approximately vertical direction, in particular when the first and / or third latching device (17, 18, 19) the common component (26) engages under the control housing (27) at least partially.

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