EP0342420B2 - 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 doors or windows according to the preambles of claims 1 and 2. Such doors or windows are known from GB-A-396,921.

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 spar in question the necessary strength that it would not have had 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 frame corners. Because of this operation, the stiffening profiles cannot be led to the corner of the frame. The consequence of this is that the frames can essentially only absorb loads in the plane of the pane.

In the case of casements of sliding folding doors or sliding folding windows, however, loads also run transversely to the frame level. If the last leaf of the arrangement can be freely rotated 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, 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 perpendicular to it. As I said, the corners themselves are not stiff enough and twist somewhat under this load. As a result, the free wing lowers and it then grazes below in the rebate or rail area.

DE-C-583 967 relates to a window on which two sashes are rotatably connected to one another so that an inner sash can be rotated through 180 ° and placed in front of the outer sash.

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 in the opened position by the wing hinged to it and thereby 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 crest 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.

In the case of 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 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 cost-effective assembly.

Starting from the prior art according to GB-A-396,921, the object of the invention is on the one hand to provide a space-saving latching device which can be controlled by means of the first door or window wing for sliding folding doors or sliding folding windows with at least three leaves . Against the background of the cited prior art, the invention is further based on the object on sliding folding doors or sliding folding windows with at least three wings for an automatically secured connection of the two mutually fixed wings during the sliding folding movement of the two Wing existing package.

To achieve the first-mentioned 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 object mentioned in second place is achieved according to the invention in that the characterizing features of this claim are provided on a door or a window of the type of claim 2.

According to claim 2, the prerequisite for engaging the third latching device is a relatively slight opening movement of the second wing. On the other hand, it is the case that when the second wing is opened, the first must be securely fixed to it, and this secures the third latching device better than a clapper-like first latching device.

In a further development of the invention according to claim it is provided that the second locking device has an actuator which projects into the movement path of the first wing and which is coupled to the second locking 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 according to claim 2 is that the first locking member is designed in the manner of a cutter and is slidably mounted in a control housing of the second wing, the first locking receptacle being located on the first wing. Cutters 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.

The first latching element does not necessarily have to be a ball, even when it is designed in the manner of a snapper, but rather a spring-loaded latching element mounted in a sliding manner can also 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.

In a further development of the invention according to claim 2, it is proposed that the third latching device has an actuator coupled to the third latching member, which projects 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 changes from its latching position to a disengaging switching position in which it releases the first leaf .

A further embodiment of the invention according to claim 2 is that the actuator for the second latching element and / or the actuator for the third latching element is a spring-loaded pusher, each loading spring, the associated latching element, at least when the pusher is pressed in, in the latching direction charged. 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.

Another preferred embodiment of the invention according to claim 2 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 directed 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, in particular in the vertical direction, is also conceivable, 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 engaging 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 displacement movement is converted into a displacement movement that is transverse, preferably perpendicular, to it. Instead, 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 sashes are folded together, the first is held in the area of its upper corner on the closing side.

Another variant of the invention according to claim 2 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. In addition, 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. 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 can advantageously be displaced 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 first and third snap-in receptacles being formed by a common component or being attached to it.

A particularly preferred variant of the invention according to claim 2 results from claim 15. 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 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:

Fig. 1:

a front view of a sliding folding door with three wings,

Fig. 2:

2 shows a top view of FIG. 1 with the wings closed,

Fig. 3:

2 corresponding representation with opened and folded wings,

Fig. 4:

on a larger scale a section at point IV - IV of FIG. 1 with the second wing closed,

Fig. 5:

a comparable representation with the first wing opened by 180 ° and the second wing slightly opened,

Fig. 6:

4 without the fixed frame,

Fig. 7:

a corresponding plan 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 spar 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 toward 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, located on the third wing 5 operating handle 16 is used to actuate a closure, not shown, through which the wings 4 and 5 can be pressed individually against the fixed frame, for example, locking bars which are up and down lock into the fixed frame 1.

The locking device comprises at least two, but in the exemplary embodiment preferably three latching devices 17, 18 and 19. 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 in this way. that it points towards the latter when the first and second wings are folded together. Conversely, on the second wing 4 there is a control housing 27 which, when the first and second wings are folded together, projects against the first wing and thereby 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. 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.

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 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. This releases the pusher 29 pushed 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 35 consists of an oblique slot 36, which extends in particular at 45 ° to the wing plane, 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 pusher 29. When the second wing 4 is closed, the push-in lever 29 rests against the upper cross member 34 of the fixed frame 1, i. H. it is pressed by the closing movement of the second leaf 4, which leads to the third locking device 19 disengaging. 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 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 locked 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 an approximately parallel position to the second wing 4, being fixed with respect to the second wing 4 by means of the first latching device 17.

Both the fixed frame 1 and the wings 2, 4 and 5 in the exemplary embodiment consist of profiled bars, preferably plastic profiled bars, the cross-sectional shapes of which are designed according to the drawing. From this it can also be seen 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, particularly 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 (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 such that it is rotatable through about 180°, and both leaves, when the first leaf (3) is in the opened-out position, are capable of being coupled by a releasable catch arrangement (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 arrangement (17) being capable of being engaged or controlled by the 180° end 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) and the second catch housing (23) being disposed on the fixed frame (1) and it being possible for the second catch arrangement (18) to be controlled by the opening movement of the first leaf (3), wherein the disengaged setting of the second catch arrangement (18) has associated to it the 180° open setting of the first leaf (3), in that the opening end movement of the 180° opening rotational movement of the leaf (3) activating the second catch arrangement (18) is, at the same time, a disengaging actuating movement of the second catch arrangement (18) and wherein the second catch arrangement (18) comprises an actuator in the form of a spring-loaded pressing member (38) which extends into the path of movement of the first leaf, and which is coupled to the second catch member via a coupling device (41), and this biasing spring (39) loads the associated catch member (22) in the direction of engagement, at least when the pressing member (38) is pressed in, and the disengaging movement thereof is directed approximately perpendicular to the disengaging movement of the second catch member (22), characterised in that the door is constructed as a slidingfolding door or the window is constructed as a sliding-folding window with at least 3 leaves (3,4,5,); and in that the coupling device (41) consists of an angular slot (42) and a pin (43) which engages therein, wherein, in particular, the angular slot (42) is located on the second catch member (22) and the pin (43) is located on the associated pressing member (38).
2. 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 such that it is rotatable through about 180°, and both leaves, when the first leaf (3) is in the opened-out position, are capable of being coupled via a first catch arrangement (17) which is detachable and consists of a first catch member (20) and a first catch housing (21), wherein the first catch housing (21) is mounted on the first leaf (3) and the first catch member (20) is mounted on the second leaf (4) or vice versa, and the first catch arrangement (17) can be engaged or controlled by means of the 180° end movement of the first wing (3) in having a second catch arrangement (18) consisting of a second catch member (22) and a second catch housing (23), wherein the second catch member (22) is disposed on the second wing (4) and the second catch housing (23) is disposed on the fixed frame (1) and the second catch arrangement (18) can be controlled by means of the opening movement of the first leaf (3), wherein the engaged position of the second catch arrangement (18) is approximately allocated to the 180° open position of the first leaf (3), in that the open end position of the 180° open rotational movement is allocated to the first leaf (3), in that the open end movement of the 180° opening rotational movement of the first leaf (3) which actuates the second catch arrangement is, at the same time, a disengaging movement of the second catch arrangement (18), characterised in that the door is formed as a sliding-folding door, or the window is formed as a sliding-folding window, with at least three leaves (3, 4, 5), and in that a third catch arrangement (19), consisting of a third catch member (24) and a third catch housing (25) is provided for the engaging coupling of the first leaf (3) on the second leaf (4), which leaf is opened by approximately 180°, wherein the third catch arrangement (19) can be controlled by means of a start-opening movement of the second leaf (4) in the locking direction, and the locked second leaf (4) is allocated to the unbolted position of the third control device (19).
3. Device according to Claim 2,
   characterised in that the second catch arrangement (18) comprises an actuator (38) which extends into the path of movement of the first leaf (3) and which is coupled to the second catch member (22).
4. Device according to one of Claims 1 to 3, characterised in that the first catch member (20) is formed in the manner of a snap-fastening and is mounted displaceably in a control housing (27) of the second leaf (4), wherein the first catch aperture (21) is located on the first leaf (3).
5. Device according to CLaim 4,
   characterised by a horizontal or vertical engaging and disengaging movement of the first catch member (20), which movement is approximately parallel to the leaf plane.
6. Device according to at least Claim 2, characterised in that the third catch arrangement (19) comprises an activating member (29) which is coupled to the third engaging member (24) and which projects beyond the second leaf (4) and towards the fixed frame (1), assuming its disengaging switch-over position when the second leaf (4) is closed.
7. Device according to Claims 3 and 6,
   characterised in that the actuator (38) for the second catch member (22) and/or the actuator (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 engagement direction at least when the push member is pushed in.
8. 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 perpendicular to one another and in that each catch member is connected to its push member via a coupling device (35, 41).
9. Device according to Claim 8,
   characterised in that the or each coupling device (35, 41) consists of an inclined slot (36, 42) and, engaging 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. Device according to Claim 9,
    characterised in that the push members (29, 38) and the second and third catch members (22, 24) 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 connected to the second leaf (4).
11. 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. 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. Device according to Claim 2,
    characterised in that the third catch member (24) is displaceable substantially perpendicular to the second catch member (22) and parallel to 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. 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. Device according to Claim 2,
    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, wherein, particularly when the first and/or third catch arrangement (17, 18, 19) are engaged, the common component (26) engages at least partially under the control housing (27).

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