EP2695843B1 - Door coupler with relief of load on the shaft door bolt - Google Patents

Description

The invention relates to a device for actuating and locking in the passage direction substantially successively arranged elevator doors according to the preamble of claim 1.

Such devices are known in their genus.

In particular, it is from the patent application WO 2005/077808 known to support the Mitnehmerkufen 14, 15 of such door coupler on rotatable pivot levers 11, 13 and to drive these pivot levers 11, 13 by means of the door opening and closing linear drive in the form of the toothed belt 106, which acts on a rotating in normal operation operating lever 1 , This drives with the interposition of a likewise rotatable cam 18 in turn by means of an actuating or push rod 10, the pivot lever 11, 13, on which the Mitnehmerkufen 14 and 15 are rotatably mounted, rotating at. By doing so, he forces the latter to move on and off. In addition, the rotating operating lever 1 acts at a given time by means of the rotatable cam 18 on the door lock so that it is unlocked. In such a construction, it is such that the compressive forces exerted by the Mitnehmerkufen 14, 15 on the shaft door rollers 109, 110 are the same size but act in the opposite direction. As a result, they lift up and apply a lateral force-free torque to the shaft door, which lifts the shaft door latch without pushing the shaft door in any direction.

In practice, especially in elevator doors, the problem repeatedly arises that the lower guide rails become dirty over time, whereupon the doors guided in them provide considerable resistance to their opening and closing movement. Also the Engagement area of the hook bar can be dirty. Due to this, it can be observed again and again that while the shaft door can barely slide in and lock, problems arise during the next opening procedure - the hook bolt catching the shaft door grips behind its latch bolt with considerable tension, as the shaft door has elastically tensioned , During the subsequent opening process, the hook latch of the shaft door can only be released by overcoming the considerable frictional forces that oppose its opening movement. Sometimes the hook latch locks and the lift system switches to fault and stops operation.

In view of this, it is the object of the invention to provide a device for actuating and locking elevator doors, which is able to reliably solve the locking of the non-self-powered door, even under difficult conditions.

This object is achieved by a device for actuating and locking doors arranged essentially one behind the other in the passage direction, wherein the device comprises entraining skids fixed to a first door, the spacing of which is variable relative to one another, in order to couple the first door to the second door and both doors to postpone together. The device is coupled to a linear drive moving the doors in the opening or closing direction. This is preferably designed as an endless traction means, usually in the form of a rope or belt, which rotates about two pulleys, one of which is driven. The linear drive drives not only one of the doors, but also a motion converter and at least one of the Mitnehmerkufen.

According to the motion converter is designed so that the driven Mitnehmerkufe (so-called "active Mitnehmerkufe") presses the second door during its unlocking at least temporarily in the closing direction, although the linear drive itself already moves in the opening direction, ie pretending a movement in the opening direction, said Pressure force that communicates the active Mitnehmerkufe the second door in the closing direction, of the pressure force, the second Mitnehmerkufe the second door in the reverse direction tells, at least not completely compensated. The crucial point is that the forces generated at the second door by the action of the coupler skids, at least in the horizontal direction do not cancel because they act in the horizontal direction opposite and are equal, but that a resultant force is generated, which presses the second, still closed door in the closing direction.

Due to this, the second door is temporarily pushed in the closing direction at the beginning of the door opening operation. As a result, the shaft door latch, even if he had previously been under tension, relieved. Therefore, it can be easily separated from its latch during the unlocking operation occurring at the same time as said squeezing.

Of course, the invention is not only useful where it is likely that the shaft door latch sits because of a jamming shaft door with tension in his latch bolt. Instead, it is also advantageous where the shaft door bolt has been deliberately brought into engagement with its latch bolt under a certain preload - for example, to prevent high speed elevators from causing the car, which is driving at full speed, a not insignificant blast, which would otherwise only play Locked shaft doors to rattle.

For reasons of patent law for the most part, it should be noted that the motion converter is realized preferably only with the participation of rockers, which form a lever mechanism. However, such a design is not the only option. As a patent equivalent, it is also conceivable that the motion converter is realized with the participation of a fine steel cable and a pulley, which reverses the direction in which the cable train exerts, and in this way actuates the active Mitnehmerkufe.

In the case of an elevator, the car door is usually the door, which is driven directly and thus the first door in the sense of the claim. Shaft doors usually do not have their own drive and therefore each provide the second door in here Each of the shaft doors is not driven directly, but taken from the car door as soon as the car reaches the stop and now the doors are to be opened together.

Of course, both the first and the second door each consist of a single door panel or several door panels, either centrally or unilaterally opening exist.

In the context of a preferred embodiment, it is provided that two rockers are mounted on the base support, which are articulated in each case on its one side on the active Mitnehmerkufe, which presses the second door in the closing direction and which are articulated at its other side to the Mitnehmerkufenträger. Due to their special linkage, the rockers generate a reversal of the direction of movement on the side of the driving skid hinged to them.

If necessary, they can also be used for the translation, that is, their two arms extending away from their roughly central bearing arms are then designed so long that the hinged Mitnehmerkufe moves at a speed relative to the base support, the amount is not identical to the amount , Which has the relative speed between the base support and the Mitnehmerkufenträger. For this reason, it is provided in the context of a preferred embodiment that the distance between the center of the rocker pivot bearing and the center of a rocker bearing, with which the base support is articulated to the rocker in question, is smaller than the distance between the center of the rocker pivot bearing and the center the other rocker bearing with which the active Mitnehmerkufe is articulated on the rocker.

Regardless, another preferred embodiment provides that the axes of rotation of the contact rollers are at different distances from the axis of rotation of the shaft door hinge bearing, so that the lever arm, acts with the force applied by the second Mitnehmerkufe horizontal force against the shaft door hinge bearing is greater than the lever arm, with the horizontal force applied by the first, active Mitnehmerkufe over the shaft door lock bearing acts. This can also be taken care of be that the said horizontal forces do not cancel each other, but that instead remains a resultant that presses the shaft door in the closing direction.

Preferably, at least the active Mitnehmerkufe is in two parts and consists of a runner base body which is coupled directly to the motion converter, and a Kufendruckkörper which is resiliently connected to the runner base body. In this case, the at least one spring preferably allows a factory or construction-side adjustment of the force with which the active Mitnehmerkufe acts on the second door. This bipartite Mitnehmerkufe allows using the relative to the respective contact roller or the respective contact member resting Kufendruckkörpers over the required period of time with a certain force on the car door or its contact roller act, although the runner main body continues relative to the contact roller or the contact organ moves.

Preferably, the second Mitnehmerkufe is held by means of a guide on the Mitnehmerkufenträger, which allows only a linear relative movement between the second Mitnehmerkufe and the Mitnehmerkufenträger. In this case, it is preferably provided that the second Mitnehmerkufe supported by means of a spring against the Mitnehmerkufenträger. Ideally, the respective Mitnehmerkufe slots on which it is held by means of engaging pins on the Mitnehmerkufenträger. This second Mitnehmerkufe is usually not coupled with the rockers that operate the other Mitnehmerkufe.

Preferably, the first and the second Mitnehmerkufe are not kinematically positively coupled. This means that the movement of the first Mitnehmerkufe as such does not directly lead to the fact that the second Mitnehmerkufe moves. Rather, the second Mitnehmerkufe remains in position relative to Mitnehmerkufenträger, as long as it is not forced by any obstacle to avoid.

It is therefore ideal that the first of the Mitnehmerkufen is driven by the linear drive, while the second Mitnehmerkufe not driven itself, but is a passive component that only at the moment performs a relative movement relative to the Mitnehmerkufenträger when it encounters an obstacle.

In the context of a preferred embodiment it is provided that the device comprises an actuator for venting and preferably also for closing the bolt of the first door, which is ideally realized in the form of a pivot lever, via which the second Mitnehmerkufe in utilization of their relative movement relative to the Mitnehmerkufenträger a force exerts on the bolt of the first door, which ventilates this against the action of a spring biasing him in the closing direction. The first latch is in particular the car door latch.

Preferably, the base support and / or its associated door is provided with a holding member which holds it in its closed position until the Mitnehmerkufenträger has reached its second end position relative to the base support, now goes to the base support to stop and then takes him and the Holding force of the holding member overcomes. The holding member is expediently designed as a magnet. The magnet is attached to the base support or to a corresponding door panel. Of course, a kinematic reversal is possible, in the sense that the magnet is attached to the counter component and the base plate or the corresponding door carries only the soft magnetic contact plate, which interacts with the magnet.

Preferably, the base support and / or the Mitnehmerkufenträger are provided with an (additional) holding device, in particular in the form of an adhesive magnet, the base carrier and the Mitnehmerkufenträger holds together during a second opening phase so that both move together without causing a relative movement between them , The magnet can be fastened either on Mitnehmerkufenträger or the base support.

Advantageously, the device has on the first door two separately operating safety contacts, namely a first safety contact, which is used to monitor whether the door bolt is properly closed, and a second safety contact, which is used to monitor whether the first door is completely closed , Such installation of two Safety contacts are particularly advantageous where the door latch is a car door latch and is designed to allow the car door to be pushed by up to 30mm manually, whether or not the car is near a stop. If such a postponement occurs improperly in normal operation, for example, the system can be shut down as soon as the corresponding safety contact signals an unauthorized pushing the car door.

In the context of an advantageous development it is provided that the device is equipped with a door bolt or car door latch, which is held by means of slots so on a base support that the car door at a stop of the car outside its intended stops by hand a piece ( up to 30 mm) can be pushed without ventilating the car door latch. In this case, preferably, a guide roller is provided, on which the car door bolt at least temporarily unrolls and the co-determined in this way the course of movement, the car door latch executes on its venting and / or closing again. Such a guide roller, together with a spring biasing the car door latch in the closing direction and the slots, can specify relatively accurately which movement of the car door latch performs during opening and closing, without the car door latch being immobilized so far as to lose the car door independent of the car door latch To move the current position of the car a little bit by hand or appropriate tool, without ventilating the car door latch.

Another independent aspect of the invention is the use of a linear drive according to claim 15.

Other modes of operation, design options and advantages of the invention will become apparent from the following explained with reference to FIGS embodiment of the invention.

The Fig. 1 shows an embodiment of the invention during the first movement phase in a moment in which the linear drive has just begun to move in the opening direction.

The Fig. 2 shows that of Fig. 1 shown embodiment during the first movement phase in a moment in which the linear drive has already moved further in the opening direction.

The Fig. 3 shows the embodiment according to Fig. 1 during the first movement phase, wherein the linear drive has moved even further in the opening direction.

The Fig. 4 shows that of Fig. 1 shown embodiment in the second movement phase, in which the base support 2 and the Mitnehmerkufenträger 3 move together in the opening direction.

The Fig. 5 to Fig. 7 show a picture sequence of the Fig. 1 shown embodiment, which can be seen how the car door latch when re-closing the car door is again brought into engagement with its latch bolt.

The FIGS. 8 and 9 show an image sequence, as the device according to the invention according to Fig. 1 when opening the car door by hand, when the car is outside a stop.

The Fig. 10 shows an image of how the inventive device according to Fig. 1 when opening the car door by hand behaves when the car is within a stop.

The Fig. 11 shows a detail enlargement illustrating the different lever arms H1 and H2.

The Fig. 2 * is with the Fig. 2 identical, but here the Mitnehmerkufenträger 3 is shown dark to make it more recognizable.

The Fig. 2 ** is with the Fig. 2 identical, but here the shaft door latch 11 is shown dark to make it more recognizable.

It should be anticipated that the opening movement in the construction according to the invention is two-phase. The same applies analogously to the closing movement. In a first opening phase, the base support 2 and the Mitnehmerkufenträger 3 move relative to each other, this relative movement is utilized to to realize the effect according to the invention. The movement of these two components relative to each other is a translational movement, ie none of the components involved performs a rotational movement about itself. In a second opening phase, the base support 2 and the Mitnehmerkufenträger 3 move together as a unitary component, in a straight-line translatory.

The Fig. 1 shows the device in a snapshot, which represents a time when the door drive has just set in motion in the opening direction. However, both the car door and the shaft door as such are still completely closed at this time. The Mitnehmerkufenträger 3 has been moved at this time by the path A relative to the base support 2 and therefore leave its so-called. First end position relative to the base support 2, in which the Mitnehmerkufenträger preferably keeps the second car door security contact 16 closed.

The device consists of a base support 2, which is fixed to the car door or on the carriage 23. In exceptional cases, which are mentioned here for reasons of patents, the base plate can be an integral part of the car door, but this will rarely happen.

The device further comprises a Mitnehmerkufenträger 3 and a first Mitnehmerkufe 4a and a second Mitnehmerkufe 4b. The Mitnehmerkufenträger 3 is directly connected to the belt 8, which realizes the linear drive in this embodiment in a conventional manner, with the help of which configured as a sliding door first door, which is usually about the car door, on and is drawn again. The Mitnehmerkufenträger 3 is thus directly from the belt 8 in the horizontal direction (see the arrow H in Fig. 1 ) is moved back and forth, depending on whether the drive circulating the belt is about to open or close the door.

The base support 2 carries, preferably in the area laterally next to the two Mitnehmerkufen 4 a, 4 b, two rockers 7, which are pivotally held by him on her rocker pivot bearing 9 a. The one end of everyone the rockers is connected via a rocker bearing 9b pivotally connected to the Mitnehmerkufenträger 3. The other end of each of the rockers is connected via a rocker bearing 9c pivotally connected to the first Mitnehmerkufe 4a, which is here called "active Mitnehmerkufe". This Mitnehmerkufe preferably consists of a runner body 5 and a spring-connected Kufendruckkörper 6, so as the Fig. 1 exemplarily shows. The mentioned rocker bearing 9 c is then articulated in each case on the skid main body 5.

The Mitnehmerkufenträger 3 also carries a second Mitnehmerkufe 4b. This second Mitnehmerkufe 4 b is held on the Mitnehmerkufenträger 3 that they translationally and preferably rectilinear translationally move relative to him, in the Fig. 1 with the arrow H marked horizontal direction. This second Mitnehmerkufe 4 b is not driven itself, it is rather passive and moves relative to the Mitnehmerkufenträger only when it abuts against another component and is prevented by this, continue to follow the Mitnehmerkufenträger.

To mention is that the Mitnehmerkufen 4a and 4b, unlike most previously known Mitnehmerkufen, in the construction according to the invention are not kinematically connected directly to each other. So you must not necessarily perform the same or a similar movement, which distinguishes them from the known Mitnehmerkufen, which are both stored together on two pivot levers. Rather, the movement of the first Mitnehmerkufe 4a is determined by the movement of the rockers 7. The movement of the second Mitnehmerkufe 4b is determined by the second contact roller 22, against which the second Mitnehmerkufe 4b at some point. In other words words can be said that a movement of the first Mitnehmerkufe 4a relative to Mitnehmerkufenträger 3 does not always force a simultaneous movement of the second Mitnehmerkufe 4b relative to Mitnehmerkufenträger 3.

Good to recognize in the Fig. 1 is also the shaft door latch 11 which is rotatably attached to the shaft door around the center of the Schachtürriegellagers 51. The Schachtürriegel carries the first Contact roller 21 and the second contact roller 22, over which the carrier runners 4a, 4b unlock the shaft door and then impose the shaft door movement of the car door. The use of contact rollers is described here only as an example, since the use of contact rollers has the advantage that the friction against the Mitnehmerkufen is minimized. However, it is also possible to use a first and a second contact pin. Non-rotatable pins can interact with the Mitnehmerkufen so that it does not detract from the invention.

It is noteworthy that the axes of rotation of the contact rollers 21 and 22 are at different distances from the axis of rotation of the shaft door hinge 51, so that the lever arm H2, with which acts the force applied by the second Mitnehmerkufe 4b horizontal force against the Schachttürriegellager, is greater than the lever arm H1, with the force applied by the first Mitnehmerkufe 4a horizontal force against the shaft door lock bearing acts. In that regard, be on Fig. 11 referenced, which illustrates what is meant here.

The shaft door latch 11 is associated with the contact bridge 12 of a shaft door safety switch that closes a safety circuit as soon as the shaft door latch 11 is in that position in which it locks the shaft door properly - the actual shaft door safety switch, which forms the counterpart to the contact bridge 12 , which is attached to the shaft door latch, is not shown by the figures.

In addition, the car door latch 13 can be seen, which is actuated by the second Mitnehmerkufe 4b via the pivot lever 14 in a manner to be described later in more detail.

Furthermore, a first car door safety contact 15 is provided. This closes a safety circuit as and as long as the car door latch 13 is in properly closed position. In addition, a second car door safety contact 16 is preferably present. This includes a safety circuit assigned to him independently of the first car door safety contact 15 only when the Mitnehmerkufenträger 3 is in the position that he has intended occupy, if Both the car door and the device for actuating both doors are both in their full closed position.

In the presentation that the Fig. 1 shows the second car door safety contact 16 is already open, because the Fig. 1 shows a snapshot of a time at which the door drive is approached just in the opening direction and therefore the Mitnehmerkufenträger 3 already the distance A in the opening direction (arrow "OPEN") has taken - of course without the car door or the shaft door as such have already opened, because Both of these doors are at the time the Fig. 1 shows, still in its fully closed position.

The key point is that the base 2 in the of the Fig. 1 . Fig. 2 and Fig. 3 shown stages is held by a first holding means, which is preferably realized by the first holding magnet 17 and the first contact plate 18 cooperating with it. The base support 2 can therefore be found in this of the Fig. 1 to Fig. 3 do not move in the opening direction shown (arrow "OPEN"). Notwithstanding the fact that the base support 2 in this way in the of Fig. 1 is still immobilized stage shown, driven by the belt 8 Mitnehmerkufenträger 3 moves in the opening direction (arrow "OPEN"). It is this relative movement that is exploited to achieve the effect of the invention.

The invention is not least characterized by the fact that it allows the first holding means to de-energize the drive after the complete closing of the car door, without the car door can open or open undesirable. Compared with the previously known constructions, there is therefore no need to permanently energize the drive to keep the door closed, which saves considerable energy.

This just mentioned relative movement is possible because the Mitnehmerkufenträger 3 is held in the manner described above with the help of the rockers 7 relatively movable relative to the base support 2. The rockers 7 both perform a rotational movement in the clockwise direction in the direction of the arrow S, so that their upper rocker bearing 9b, which is the position of the Mitnehmerkufenträgers. 3 determined, displaced substantially in the opening direction. In this way, the Mitnehmerkufenträger 3 despite the immobilization of the base support 2 perform a translational movement in the opening direction (arrow "OPEN"), while the first Mitnehmerkufe 4a performs a translational movement in the closing direction.

The Fig. 2 shows a snapshot showing a slightly later stage than that of the Fig. 1 ,

The Mitnehmerkufenträger 3 has now moved a bit further in the opening direction, accordingly, the distance A has become slightly larger compared with the distance A, the in Fig. 1 is shown. The base support 2 remains in its original position, which is why of course the distance B or the position of the base support 2 and the Mitnehmerkufenträgers 3 has changed relative to each other. Due to this, the rockers have turned a little further clockwise and the first Mitnehmerkufe 4a hinged to them has moved in the closing direction (arrow "CLOSE"), whereby the first Mitnehmerkufe 4a of the first contact roller 21 has come a good deal closer. The progressive in the opening direction, translational movement of the Mitnehmerkufenträgers 3 is therefore converted in this stage in a progressing in the closing direction translational movement of the first Mitnehmerkufe 4a. By a suitable choice of the distance which the two rocker bearings 9b and 9c occupy with respect to the rocker main bearing 9a, can be set in the construction, at which time the first Mitnehmerkufe 4a first comes into contact with the first contact roller 21 and thereby a force in the closing direction ( Arrow "CLOSE") on them. This adjustment can be made independently of the movement of the second Mitnehmerkufe 4b.

With a corresponding, preferred design of the construction can ensure that the first Mitnehmerkufe 4a temporarily pushes with a greater force on the first contact roller 21 than the force with which presses the second Mitnehmerkufe on the associated second contact roller 22.

In this way, the shaft door is pressed by the first Mitnehmerkufe 4a moment in the closing direction, although the Mitnehmerkufenträger 3 already moves continuously in the opening direction.

As a result, the shaft door latch 11 is relieved and can be easily lifted by the two Mitnehmerkufen 4a and 4b by the two Mitnehmerkufen 4a and 4b pinch the first contact roller 21 and the second contact roller 22 between them and so the shaft door latch 11 impart a rotational movement, here against the clockwise.

Even while the Mitnehmerkufen 4a and 4b are about to impart the required rotational movement to the shaft door latch 11, the second Mitnehmerkufe 4b differs in the closing direction by moving relative to the Mitnehmerkufenträger 3, thus allowing the second Mitnehmerkufe that the shaft door in the closing direction is pressed.

The preferably provided two-part design of the first Mitnehmerkufe 4a, which consists of a skid base 5 and a Kufendruckkörper 6 here makes their contribution to the functioning of the construction. Because this embodiment allows the runner base 5, under the influence of the rockers 7 continue to move in the closing direction (arrow "CLOSE"), although the Kufendruckkörper 6 is already in contact with the first contact roller 21. Since the skid main body 5 and the skip pressure body 6 are connected to each other via one or more springs or springs, not shown in the figures, it is possible in this way, with the help of Kufendruckkörpers 6 a defined force on the first contact roller 21 in the closing direction ( Arrow "CLOSE") apply, without hindering the further movement of the skid base 5, which is forcibly driven by the rockers 7.

Quite the contrary - since preferably also the second Mitnehmerkufe 4b is held relative to the Mitnehmerkufenträger with the help of at least one spring, the designer or possibly the service engineer on the choice of the springs vote exactly how large the differential force is, with the shaft door in the phase in which her shaft door latch is released, is pressed in the closing direction.

The Fig. 2 * is with the Fig. 2 identical. The Fig. 2 * serves to clarify the position of the base support 2 and the carrier 3 carrier.

The Mitnehmerkufenträger lying in front of the plane of the drawing, and therefore the underlying basic support 2a almost completely behind is in Fig. 2 * shown in dark. It is a preferably one-piece component, which ideally consists of a single sheet.

The Fig. 2 ** again shows the same as the Fig. 2 Now, however, the shaft door latch 11 is shown dark.

In this context, it should also be noted that the shaft door latch 11 and the components carried by it, in particular the contact rollers 20 and 21, can be seen in all figures only because they from above the viewer facing position above the plane in this down have been projected to show the interaction of all the components of the overall device - in fact, the contact rollers 20, 21 from a position which lies above the plane of drawing down into the gap between the first and the second Mitnehmerkufe.

The Fig. 3 shows a snapshot at a much later stage than that of the Fig. 2 ,

The Mitnehmerkufenträger 3 still moves in the opening direction, see. the distance A, while the base support 2 still remains in its original position.

Driven by the still proceeding in a clockwise direction of pivoting movement of the rockers 7, the first Mitnehmerkufe 4a continues to move in the closing direction, while the second Mitnehmerkufe still dodges in the closing direction. The torque exerted by the entrainment skids on the contact rollers 21, 22 clamped between them has long since become so great that the ventilation of the shaft door bolt by pivoting counterclockwise already is far advanced, the swinging motion is nearing completion.

The Fig. 3 shows a snapshot, in which the first opening phase is nearing completion.

The Mitnehmerkufenträger 3 has a stop 10. This stop 10 is preferably formed in the embodiment shown by the figures by a folded over approximately 90 degrees BlechLappen.

The first opening phase takes place in the moment in which the second Mitnehmerkufe 4b applies to this stop 10. It can now transfer the entire force of the Mitnehmerkufenträgers 3 in the opening direction (arrow "OPEN") on the shaft door and is no longer able to dodge. At the same time the relative movement of the Mitnehmerkufenträgers 3 relative to the base support 2 reaches its end, since the Mitnehmerkufenträger 3 applies against a stop, not shown here on the base support 2 and thus has reached its second end position relative to the base support 2. As a result, it forces the base support 2, overcoming the holding force of the holding means or of the first holding magnet 17, to move synchronously with the carrier carrier 3 in the opening direction.

This derives from the Fig. 4 shown second opening phase in which the Mitnehmerkufenträger 3 and the base support 2 as a one-piece component move together in the opening direction (arrow "OPEN"), wherein the first contact roller 21 and the second contact roller 22 held substantially free of play between the Mitnehmerkufen 4a and 4b are so that the landing door is coupled at least almost free of play to the car door and follows their movements.

Preferably, a second holding means is provided, which is ideally embodied by the second holding magnet 19 and the second contact plate 20. The second retaining means ensures that the Mitnehmerkufenträger 3 and the base support 2 do not move unintentionally relative to each other during the second opening phase and the corresponding closing phase, but move as intended together, like a single component, as long as that is necessary. At the same time this ensures that the Mitnehmerkufen remain in the closed position.

In particular, the comparison between Fig. 2 and Fig. 3 makes it clear how the ventilation of the car door latch 13 proceeds.

The car door latch 13 has two slots 25 whose function will be explained in more detail later. In one of its slots 25 engages an axle 26, which forms a pivot bearing for the car door latch 13, said pivot bearing allows, if necessary, a translational displacement of the car door bolt. In addition, the car door latch 13 is movably connected to a pivot lever 14 which engages via a pin 27 in the other slot 25 of the car door bolt. The car door latch is resiliently biased by the at least one car door latch spring 24. The biasing force acts in a substantially horizontal direction in this embodiment, with the tendency to pull the car door latch to the right. In addition, there is a car door latch guide roller 52, against which, at least temporarily, an edge of the car door latch rolls under the influence of the slot bearing and the car door latch spring 24 and thereby influences the pivotal movement of the car door latch. The pivot lever 14 in turn is pivotally hinged to the Mitnehmerkufenträger 3, which preferably has a small bearing projection for this purpose, which protrudes laterally beyond the stop 10.

The car door latch 13 facing away from the end of the pivot lever 14 engages through a recess in the stopper 10 through and abuts against the back of the second Mitnehmerkufe 4b.

As soon as there is now a relative movement between the second Mitnehmerkufe 4b and the Mitnehmerkufenträger 3, in the sense that the back of the second Mitnehmerkufe 4b increasingly closer to the stop 10 of Mitnehmerkufenträgers 3 approaches, the back of the second Mitnehmerkufe 4b exerts a force and thus a torque on the pivot lever 14 from. In the case of the Fig. 2 and Fig. 3 shown embodiment, this torque acts counterclockwise. The pivot lever 14 thus rotates counterclockwise and thereby ventilates the car door latch 13 against acting in the closing direction bias of the car door latch spring 24th

Fig. 5 to Fig. 7 explain how the car door latch 13 is closed again when closing the car door.

Starting with the Fig. 5 the progression of the closing movement progressing from right to left is shown, which sets in until the closing process is almost completed, which is shown in FIG Fig. 7 is shown.

As a reminder, it should be noted that the car door latch via an axle 26, which engages in one of its slots 25, and is held by means of the car door latch spring 24 on the base support 2. The cooperating with him pivot lever 14 is pivotally mounted by means of the axle pin 27 on the Mitnehmerkufenträger 3 and is therefore forced to move substantially with this with.

How to compare the Fig. 5 and Fig. 6 recognizes, first, the pivot lever 14 is moved substantially translationally relative to the car door latch 13 and thereby moves the car door latch already a bit in the direction of its closed position.

How to compare the Fig. 6 and Fig. 7 detects the Mitnehmerkufe 4b at the end of the closing movement relative to the base support 2 in the opening direction (arrow "OPEN"), so that the pivot lever 14 at the point with which it rests against the Mitnehmerkufe 4b, currently move in the direction of arrow P2 can, which has a total of a pivoting movement of the pivot lever in a clockwise direction in the direction of the arrow D1 result. As a result, the car door latch is brought into engagement with its associated latch latch.

FIGS. 8 and 9 illustrate that the car door in the event of a business interruption, the car outside a regular stop can come to a certain extent can be opened wide, but the car door latch 13 remains closed and therefore prevents inadmissible, complete sliding the car door.

Fig. 8 shows a snapshot of a time when the car door has just begun to be slid open while Fig. 9 shows a snapshot of the time at which the manual sliding of the car door has come to an end and the car door can no longer be postponed.

As can be seen from the comparison of FIGS. 8 and 9 detects, the car door can be pushed a little way (in the direction of the arrow "OPEN"), because the car door latch with him holding the base support 2 and the pivot lever 14 actuating it only connected via the slots 25 and beyond only the car door latch spring 24 is why he can perform a relative movement relative to him holding the base plate 2 for a while.

As a result, the person pushing the door in the opening direction at this stage with the hand or a tool overcomes the holding force of the first holding magnet 17, and then moves the base carrier 2 and the entrainment carrier 3 together with the car door leaves. In this case, the car door latch itself does not move significantly, he remains with his assigned door latch into engagement. However, he sets the movement of the base support, Mitnehmerkufenträgers and thus ultimately the movement of the door leaves initially no significant resistance, since the him attaching to the base support pin 26 and the pin over which the pivot lever 14 is engaged with the car door latch, the Slide long holes 25 along. As a result, the base support and Mitnehmerkufenträger can move largely unhindered relative to the car door latch by the car door latch spring 24 is tensioned.

How to use the Fig. 9 sees, however, at least one of the said pins reached after some time the end of his long hole and suggests there. Now the car door can not be postponed any further.

This "limited" pushing works because the second Mitnehmerkufe 4 b always when the car is outside a stop, as long as not moved relative to the Mitnehmerkufenträger until the car door latch 13 blocks further postponement. Since the Mitnehmerkufe does not move relative to Mitnehmerkufenträger, it can not with its back so press on the pivot lever 14, that this is forced a movement in the counterclockwise direction and thereby he lifts the car door latch. For the lack of relative movement of the second Mitnehmerkufe 4b here is the fact responsible that whenever the car is outside a stop and therefore not aligned with a shaft door, no contact roller in the area of action of the second Mitnehmerkufe 4b, the one for actuating the pivot lever could enforce leading displacement of the second Mitnehmerkufe relative to Mitnehmerkufenträger.

The Fig. 10 shows the conditions that arise when the car door is pushed, when the car is in a stop and at least approximately aligned with a shaft door.

When the car door is pushed out of such a position of the car, then the second Mitnehmerkufe immediately adjusts to the second contact roller 22 of the shaft door and is thereby forced to relative movement in the course of further common movement of the Mitnehmerkufenträgers 3 and the base support 2 execute the Mitnehmerkufenträger so that it comes closer to the stop 10 in this embodiment. As a result, the pivot lever 14 is forced a counterclockwise rotation, which brings the car door latch with its latch latch disengaged.

• Unabhängig von dem, was in den Ansprüchen niedergelegt ist, wird auch Schutz für eine Vorrichtung zur Betätigung und Verriegelung von in Durchgangsrichtung im Wesentlichen hintereinander angeordneten Aufzugstüren - wie einer Fahrkorbtür und einer Schachttür - beansprucht, die an einer ersten Tür befestigte Mitnehmerkufen 4a, 4b umfasst, deren Abstand relativ zueinander veränderlich ist, um die erste Tür an die zweite Tür ankuppeln und beide Türen gemeinsam aufschieben zu können, und die mit einem die Türen in Öffnungs- bzw. Schließrichtung bewegenden Linearantrieb gekoppelt ist, wobei der Linearantrieb über einen Bewegungswandler mindestens eine der Mitnehmerkufen antreibt und die Kopplung derart ist, dass der Linearantrieb, während er sich in Öffnungsrichtung bewegt, in einer ersten Phase die mindestens eine Mitnehmerkufe antreibt, ohne an die erste Tür angekuppelt zu sein und diese zu bewegen, und in einer zweiten Phase an die erste und zweite Tür angekuppelt ist und beide Türen in Öffnungsrichtung bewegt.

Finally, in general, the following should be noted:

• Regardless of what is stated in the claims, also protection for a device for actuating and locking is arranged in the passage direction substantially one behind the other Elevator doors - such as a car door and a landing door - claimed, comprising at a first door entraining skids 4 a, 4 b whose distance is variable relative to one another, to couple the first door to the second door and push both doors together, and with the linear drive is driven via a motion converter at least one of the Mitnehmerkufen and the coupling is such that the linear drive, while moving in the opening direction, in a first phase, the at least one Mitnehmerkufe drives without being coupled to the first door and to move, and is coupled in a second phase to the first and second door and moves both doors in the opening direction.

Regardless of what is set forth in the claims, also protection for a device for actuating and locking in the passage direction substantially successively arranged elevator doors - such as a car door and a landing door - claimed, which includes fixed to a first door Mitnehmerkufen whose distance relative to one another, in order to couple the first door to the second door and to push both doors together, and which is coupled to a linear drive moving the doors in the opening or closing direction, the claimed device comprising a base carrier and a carrier carrier, wherein the Mitnehmerkufenträger is mounted relative to the base support, that it translationally in the course of the opening operation, d. H. without being able to rotate about itself, move between a first and a second end position relative to the base support.

Regardless of what is set forth in the claims, protection is also claimed for a device for actuating and locking passageways substantially successively arranged elevator doors - such as a car door and a landing door - having a base support and temporarily relative thereto between a first and second end position movable Mitnehmerkufenträger, wherein a temporarily acting holding device, is ideally provided in the form of at least one holding magnet, which immobilizes the base support so in that the carrier carrier can move between its first and second end positions relative to the base carrier without causing the base carrier to move, and optionally with at least one further holding device, ideally in the form of at least one further holding magnet, which holds the carrier carrier and the carrier Base carrier fixed in one of the end positions to each other, so that they move together in the course of the further opening operation and relative to each other to perform a movement.

Regardless of what is set forth in the claims, protection for a device for actuating and locking in the passage direction substantially successively arranged elevator doors - such as a car door and a landing door - claimed which comprises an actuating member, preferably in the form of a pivot lever , via which the second Mitnehmerkufe - preferably with its rear side - exerts a force on the bolt of the first door, which ventilates this against the action of him biasing in the closing direction, wherein the first latch is in particular the car door latch 13.

Regardless of what is set forth in the claims, protection for a device for actuating and locking of passageways substantially successively arranged elevator doors - such as a car door and a landing door - claimed, which is equipped with a car door latch, with the aid of Slots and possibly a car door latch spring is held on a base support such that the car door at a stop of the car outside its intended stops by hand a piece far (up to 30 mm) can be postponed without ventilating the car door latch.

Regardless of what is stated in the claims, protection is claimed for a device in which the distance between the center of the rocker pivot bearing and the center of the rocker bearing, with which the base support is articulated on the rocker concerned, is smaller than the distance between the center of the rocker pivot bearing and the center of the other rocker bearing, with which the active Mitnehmerkufe on the rocker is hinged, wherein the conditions are preferably at the same time so that the axes of rotation of the contact rollers are at a different distance from the axis of rotation of the shaft door hinge bearing, so that the lever arm, acts with the force applied by the second Mitnehmerkufe horizontal force against the Schachttürriegellager, is greater than that Lever arm with which the force applied by the first Mitnehmerkufe horizontal force acts against the shaft door hinge bearing.

Regardless of what is stated in the claims, protection for the use of the linear drive for the direct drive only one of two Mitnehmerkufen is claimed.

All of these independent variants also claim protection in combination with the other features listed in the description and / or the claims.

LIST OF REFERENCE NUMBERS

1

Device for the synchronous operation and locking of elevator doors

2

base support

3

Mitnehmerkufenträger

4a

first entrainment skid

4b

second entrainment skid

5

Skid base

6

Runners pressure hull

7

bob

8th

belt

9a

Rocker central warehouse

9b

rocker bearing

9c

rocker bearing

10

attack

11

Shaft door lock

12

Contact bridge of the shaft door safety switch

13

Car door lock

14

pivoting lever

15

first car door safety contact

16

second car door safety contact

17

first magnet

18

first contact plate

19

second magnet

20

second contact plate

21

first contact role

22

second contact role

23

carriage

24

Car door latch spring

25

Long holes in the car door latch

26

Axle pin of the car door bolt

27

Axle pin of the pivoting lever for connection to the door bolt 13

50

Axle pin of the pivoting lever for connection to the carrier carrier

51

Shaft door lock bearing

52

Guide roller for the car door latch

S

Pivot arrow symbolizing the rotation of the rockers 7

OPEN

Arrow symbolizing the opening direction

CLOSE

Arrow symbolizing the closing direction

H

Arrow symbolizing the horizontal direction

P1

Arrow, which symbolizes the translational movement that the pivot lever 14 executes in the course of the closing movement relative to the car door latch 13

P2

Arrow that symbolizes the movement of the rocker arm 14 in the point where it rests against the back of him driving Mitnehmerkufe

H1

first lever arm on which acts a horizontal force of the first Mitnehmerkufe

H2

second lever arm, on which a horizontal force of the second Mitnehmerkufe acts

D1

Rotational movement that the pivoting lever performs as a result of its displacement in the point symbolized by P2

Claims (15)

1. Device (1) for the synchronous actuation and locking of elevator doors that are substantially disposed one behind the other in the passage direction - such as a cage door and a shaft door - , wherein the device comprises drive skids (4a, 4b) attached to a first door whose distance relative to each other is variable, in order be able to couple the first door to the second door and jointly push the two doors open, and the device is coupled to a linear drive moving the doors in the opening or closing direction, and the linear drive also drives at least one of the drive skids (4a) by means of a motion converter, characterised in that the motion converter is designed in such a way that said drive skid (4a) at least temporarily pushes the second door in the closing direction, while that is being unlocked, in such a way that the bar that keeps the second door closed is relieved of load even though the linear drive itself is already moving in the opening direction.
2. Device according to claim 1, characterised in that the motion converter consists of a base bracket (2) attached to or integrated into the first door and a drive skid bracket (3) driven directly by the linear drive, wherein the drive skid bracket (3) is retained on the base bracket (2) in such a way that it is capable of shifting, relative to the base bracket (2), between a first and a second end position and that this shift of the drive skid bracket (3) relative to the base bracket (2) is utilised to move said active drive skid (4a) in such a way that it temporarily pushes the second door in the closing direction even though the linear drive itself is already moving in the opening direction.
3. Device according to any one of the preceding claims, characterised in that two rockers (7) are mounted on the base bracket (2), which are respectively hinged on their one side to the active drive skid (4a) that pushes the second door into the closing direction, and which are respectively hinged on their other side to the drive skid bracket (3).
4. Device according to any one of the preceding claims, characterised in that the distance between the centre point of the central rocker bearing (9a) and the centre point of the rocker bearing (9b) with which the base bracket (2) is hinged to the rocker (7) is smaller than the distance between the centre point of the central rocker bearing (9a) and the centre point of the rocker bearing (9c) with which the active drive skid (4a) is hinged to the rocker (7); wherein the axes of rotation of the contact rollers (21, 22) are preferably disposed at different distances from the axis of rotation of the shaft door bar bearing (51) so that the lever arm (H2) with which the horizontal force exerted by the second drive skid (4b) acts on the shaft door bar bearing (51) is greater than the lever arm (H1) with which the horizontal force exerted by the first drive skid (4a) acts on the shaft door bar bearing (51).
5. Device according to any one of the preceding claims, characterised in that at least the active drive skid (4a) consists of two parts and is comprised of a skid basic body (5) directly coupled to the motion converter and a skid pressure body (6) spring-connected to the skid basic body (5), wherein the at least one spring permits an adjustment of the force with which the drive skid (4a) acts on the second door.
6. Device according to any one of the preceding claims, characterised in that the second drive skid (4b) is retained on the drive skid bracket (3) by means of a guide which only allows a rectilinear relative movement between the second drive skid (4b) and the drive skid bracket (3), wherein it is preferably provided that the second drive skid (4b) is supported on the drive skid bracket (3) by means of a spring.
7. Device according to any one of the preceding claims, characterised in that the force that the active drive skid (4a) exerts on the second door in the closing direction, at least in the phase in which the release of the bar of the second door is begun, is greater than the force that the other drive skid (4b) exerts in the opposite direction on the second door, so that a resulting force is obtained that pushes the second door in the closing direction.
8. Device according to any one of the preceding claims, characterised in that the first and the second drive skids (4a, 4b) are not kinematically positively coupled.
9. Device according to any one of the preceding claims, characterised in that only the first one of the drive skids (4a) is driven by the linear drive, whereas the second drive skid (4b) is not driven itself, but is a passive component which executes a relative movement relative to the drive skid bracket (3) not until the moment it hits an obstacle.
10. Device according to any one of the preceding claims, characterised in that the device comprises an actuating organ, preferably in the form of a pivoting lever (14), through which the second drive skid (4b), utilising its relative movement relative to the drive skid bracket (3), exerts a force on the bar of the first door which releases the bar against the action of a spring (24) biasing it in the closing direction, wherein the first bar is, in particular, the cage door bar (13).
11. Device according to any one of the preceding claims, characterised in that the base bracket (2) and/or the door associated with it is provided or cooperates with a retaining device, in particular in the form of a clamping magnet (17), which, during a first opening phase, retains the door in its closed position until the drive skid bracket (3) has reached its second end position relative to the base bracket (2) and then entrains the base bracket (2) and overcomes the retaining force of the retaining device or of the clamping magnet (17).
12. Device according to any one of the preceding claims, characterised in that the base bracket (2) and/or the drive skid bracket (3) is provided or cooperates with a retaining device, in particular in the form of a clamping magnet (19), which, during a second opening phase, holds the base bracket (2) and the drive skid bracket (3) together so that the two move together without any relative movement occurring between the two.
13. Device according to any one of the preceding claims, characterised in that the device comprises two separately operating safety contacts on the first door, in particular in the form of cage door safety contacts (15, 16), i.e. a first safety contact, with which it is monitored whether the door bar, in particular in the form of a cage door bar (13), is properly closed, and a second safety contact, with which it is monitored whether the first door, in particular the cage door, is completely closed.
14. Device according to any one of the preceding claims, characterised in that the device is equipped with a cage door bar (13) which, by means of elongated holes (25), is retained on a base bracket (2) in such a way that the cage door, in case of a stop of the cage outside its intended stopping places, can be manually pushed open to some extent without releasing the cage door bar (13), wherein a guiding roller (52) is preferably provided which the cage door bar (13) rolls off on at least temporarily and which in this manner co-determines the course of the movement that the cage door bar (13) carries out during its release and/or closing process.
15. Use of a linear drive, which drives the cage door of an elevator and moves in the opening direction, in order to generate, at least in the phase in which the release of a bar that serves for locking the shaft doors is begun, a resulting force, by means of drive skids of the cage door, which pushes the shaft door, which is still closed, in the closing direction.

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