WO2015177148A1

WO2015177148A1 - Locking device for sliding plug doors of public passenger transport vehicles; sliding plug door with locking device

Info

Publication number: WO2015177148A1
Application number: PCT/EP2015/060992
Authority: WO
Inventors: Andreas Pellegrini; Ulrich Arend
Original assignee: Gebr. Bode Gmbh & Co. Kg
Priority date: 2014-05-22
Filing date: 2015-05-19
Publication date: 2015-11-26
Also published as: CN106232924A; MX2016015048A; DE202014102405U1; RU2016145413A3; CN106232924B; RU2016145413A; CL2016002741A1

Abstract

The invention relates to a locking device (10) for sliding plug doors of vehicles, in particular vehicles for public passenger transport, comprising at least one door leaf able to slide in the longitudinal direction of the vehicle and a drive (50) for moving the door leaf between a closed and an open position, wherein the locking device (10) comprises a rod (20; 30; 40) that can be brought into an over-dead-centre position for locking the door in the closed position. The invention is characterised in that the locking device (10) comprises a base plate (11) on which a locking plate (20) and a bell crank (40) are rotatably mounted in respective bearings (13; 14) in a plane parallel to the plane of the base plate. The bell crank (40) and the locking plate (20) are hinged to one another via a locking lever (30) mounted on the bell crank and locking plate, wherein the bell crank (40), the locking lever (30) and the locking plate (20) can be brought by articulating the locking lever (30) into a position in which the connecting line (VV) is between the bearing (13) of the bell crank (40) and the joint (32) between the locking lever (30) and the locking plate (20) and the connecting line (VU) is between the bearing (13) of the bell crank (40) and the joint (31) between the bell crank (40) and the locking lever (30) in the over-dead-centre position. The over-dead-centre position can be released by an opposing articulation of the locking lever (30), wherein the locking plate (20), the bell crank (40) and the locking lever (30) are arranged on the same side of the base plate (11).

Description

LOCKING DEVICE FOR SWIVEL SLIDING DOORS OF VEHICLES OF PUBLIC PASSENGER TRANSPORT; SWIVEL SLIDING DOOR WITH LOCKING DEVICE

The invention relates to a locking device for sliding doors of vehicles, in particular of vehicles for public transport. Such a sliding door typically includes at least one longitudinally displaceable door panel and a drive for moving the door panel between a closed and an open position. A wrapper device then often includes a linkage having a plurality of levers that can be brought into an over-center position for locking the door in the closed position.

In particular, drive systems for such pivotal sliding doors are known, which constitute a guidance system. About pivot arms and an associated guide rail while a pivoting and sliding movement of the door is determined. The door drive is not locked in its end positions, but the door lock is then via additional locking systems that act on the edge of the door leaf.

20

In particular, locking systems are known which use an over-release of components to hold vehicle doors in a certain position, i. in particular to prevent opening of the door by pressure from the vehicle interior. But also an inadvertent closing of the opened door can

25 be prevented. For example, the patent DE 199 58 746 B4 discloses a lock for the hinged door of a vehicle, with which the door is to be held in an open position. When the vehicle is open

Swinging door is on a slope or a slope, can be prevented so that the open door due to its own weight the associated

30 swivel arm rotates about its axis of rotation and the door falls. This is achieved in that the swivel arm are connected via a connecting rod and a connecting rod bearing with an eccentric disc on a drive shaft. When the door is open, the connecting rod with the connecting rod bearing is in Übertotstellung, and with a movement of the swivel arm in the direction that would close the door, the connecting rod is stronger in the Overtone pressed. Thus, an inadvertent closing of the door can be prevented. On the other hand, if the door is intentionally closed, a torque is applied to the drive shaft, which rotates the eccentric disc attached thereto. As a result, the connecting rod bearing is pivoted out of the Übertotstellung out.

Furthermore, for example, the utility model DE 20 2005 015 169 U1 describes a pivoting sliding door with a carrying guide and a locking device that is easy to install and set. In this case, a dead center or Übertotpunktverriegelung is used in the closed door and an unwanted release of the lock is prevented, for example, by strong vibrations or shocks. This is done by a locking disc, which is connected via a lever linkage and a connecting rod with the housing of a drive motor. The housing of the drive motor is rotatably mounted about the axis of its output shaft, so that a reaction force of the drive motor via the connecting rod and the lever linkage to the locking disc is transferable. The locking disc has a locking slot and is rotated for locking by the reaction force of the drive motor to a position in which a locking pin is located within the slot so that no movement of the door in the direction of movement of the carrying guide is possible. In this closed position prevents an over-center division of the lever linkage opening of the door, which is secured by the additional locking means of the locking bolt. This type of locking has proven to be safe, but brings depending on the design, the disadvantage that it is expensive to produce. For example, various rotatably mounted components of the lock to be mounted on opposite sides of a base plate. Thus, the vertical dimensions of the lock do not exceed a certain level, in particular relatively thin plates and bearings are used with low height. Furthermore, bearing bolts are attached to the base plate by welding.

The object of the invention is therefore to provide a locking device for sliding doors of vehicles, in particular of public transport vehicles. transport that is as safe and easy to manufacture as possible.

According to the invention this object is achieved by a locking device according to independent claim 1. Advantageous developments of this locking device will become apparent from the dependent claims 2-14. Furthermore, the object is achieved according to claim 15 by a pivoting sliding door with such a locking device. It should be noted that the features listed individually in the claims can be combined with each other in any technically meaningful manner and show further embodiments of the invention. The description additionally characterizes and specifies the invention, in particular in connection with the figures.

The locking device according to the invention is suitable for sliding doors of vehicles, in particular of public transport vehicles, such doors comprising at least one longitudinally displaceable door leaf of the vehicle and a drive for moving the door leaf between a closed and an open position. The locking device in this case has a linkage, which can be brought to a locking of the door in the closed position in an over-center position.

According to the invention, the locking device in this case has a base plate on which a locking plate and a lever in respective bearings are rotatably mounted in a plane parallel to the plane of the base plate. The term "parallel" in the sense of this invention merely denotes the position and planes of rotation of the locking plate and the reversing lever with respect to the base plate, but absolute parallelism of these components is not required articulated to this mounted locking lever with each other, wherein the lever, the locking lever and the locking plate can be brought by articulation of the locking lever in a position in which the line connecting the bearing of the bell crank and the joint between the locking lever and the locking plate and the connecting line between the bearing of the reversing lever and the joint between the lever and the locking lever are in Übertotpunktsteilung and this Übertotpunktsteilung is resolvable by an opposite articulation of the locking lever. The bell crank and the locking lever are thus brought into a Übertotpunktsteilung for locking, but at the same time also rotates the locking plate and can be used for additional locking. If it is not used for additional locking, it is merely part of the linkage to create a deadlock.

In the Übertotpunktsteilung the reversing lever and the locking lever, the lock can not be opened by pressure in particular against the inside of the / the door. The locking plate, the lever and the locking lever are arranged on the same side of the base plate. This inventive arrangement of the components on one side of a base plate has the particular advantage that a very compact and easy to manufacture device can be provided. The locking device can be manufactured as a prefabricated component and then mounted on a door portal via the base plate. Known locking devices of a similar type often have rotatable components on two sides of a base plate, wherein the base plate is executed multiple angled. Thus, depressions, indentations or cavities for individual components are produced in the plate in order to keep the height of the entire locking device low. When attaching the locking device, for example, in the upper region of a door portal, it requires only as little space in the vertical direction. Since in this area, the drive is usually housed with one or more guide rails, the locking device should complement the respective drive device in a simple way to save space. On relatively thin base plates, however, components such as bearings may possibly only be attached by welding, since the material thickness is often insufficient, for example, for screwing in bolts. Also, only short bearings can be used, which do not unnecessarily increase the height of the locking device. For the invention, however, a simple, flat plate without bends can be used, which simplifies the manufacture of the plate. The base plate may also be made relatively thick, for example of the order of 10-15 mm. The bearings for rotatably supporting the locking plate and / or the reversing lever relative to the base plate, for example, each comprise a bolt which is fixed to the base plate, such a bolt may be screwed into the base plate. Furthermore, longer bearings can be used. The height of such a bearing bolt can be, for example, in the order of 20-40 mm.

In one embodiment of the invention, the reversing lever and / or the locking plate are each formed, for example, by a plate on which a hollow cylinder is formed in the region of the respective bearing. The longitudinal axis of such a hollow cylinder is perpendicular to the plate plane of the reversing lever and / or the locking plate, wherein the length of the hollow cylinder is greater than the thickness of the respective plate. The hollow cylinder thus depends on the plate-shaped components. A bolt of the respective bearing can then be rotatably guided in this hollow cylinder or the hollow cylinder rotates about the bolt. Thus, a stable bearing can be easily produced for the rotatable components of the locking device without having to weld components to the base plate.

In a further embodiment of the invention, the locking plate has a locking recess into which a locking element fixedly attached to the vehicle engages, at least in the closed position of the locking device. The position of the locking element is unchanged relative to the vehicle. The locking plate is used in this embodiment for additional locking of the door, wherein an element on the vehicle interacts with the rotatable locking plate. Preferably, in the closed position, the locking plate is such that the locking element blocks movement of the locking plate transverse to the longitudinal direction of the vehicle while in the unlatched position it is such that the locking element does not block the movement of the locking plate transverse to the longitudinal direction of the vehicle. In addition to a locking via the over-center position of the diverter bels and the Verhegelungshebels can take place so a further lock. This depends on the type of a rotary latch from the angle of rotation of the locking plate.

In this case, preferably, the sliding movement of the door along the longitudinal axis of the vehicle is not blocked, but rather a movement transversely to this longitudinal axis. This is for example the case when the drive is slidably mounted together with a carrying guide transversely to the longitudinal axis of the vehicle to pivot the door at the beginning of the opening operation of the outer wall of the vehicle before the door is moved along the outer wall. Conversely, the same applies at the end of the closing process to pivot the door into the outer wall.

The locking recess in the locking plate may, for example, be a slot open to one side into which a locking element can move in and out depending on the rotation of the plate. In one embodiment of the invention, however, the locking recess is a closed slot within the locking plate. The longitudinal axis of this elongated hole transverse to the direction in which movement of the locking plate and thus the door is to be prevented in the locked position, the locking element blocks this movement. Preferably, this direction of movement is the direction transverse to the longitudinal axis of the vehicle, since with the door closed in particular a pressing of the door to the outside is to be prevented. In the unlatched position of the locking device, however, the locking element is movable transversely to the longitudinal direction of the vehicle within the oblong hole during a movement of the locking plate, so that this movement is possible.

In one embodiment of the invention, it is further provided that on the base plate, a stop is formed, on which the locking plate abuts in a defined Übertotpunktlage between the reversing lever and the locking lever. Alternatively or additionally, it can also be provided that, in the locked position of the locking device, the locking lever abuts a stop on the base plate in a defined position. In this case, the stop may be a component projecting from the base plate. In a advantageous embodiment of the invention proposes the locking lever on the bearing of the reversing lever, whereby no additional elements are required. In this case, the locking lever abut against a bearing pin or on the circumference of the hollow cylinder of the reversing lever, in which a bearing pin is guided. The bearing of the reversing lever can be used for various purposes, the locking lever can strike directly or indirectly to the camp. For example, in the case of an indirect variant, a plastic component can be attached locally to a metal locking lever, which comes into contact with the bearing for the abutment. For this purpose, the stop surface of this plastic component can be made concave in order to come to rest on the bearing pin or the hollow cylinder of the reversing lever. The use of a plastic part, for example, has the advantage that the bearing is not damaged even with a large number of attacks by the locking lever. However, a concave abutment surface can also be formed directly on the metallic locking lever.

Furthermore, an actuating element for canceling the over-center position between the reversing lever and the locking lever can be formed on the reversing lever. This may be, for example, a protruding from the lever lever bolt. By turning the reversing lever over this bolt, the over-center position can be resolved. At the same time, the locking plate also rotates. This actuator can be manually operated, for example, in an emergency via a Bowden cable, whereby the door can be opened without operating a drive. In addition, may be formed on the base plate, a latching element, in which the locking lever in a locked position of the locking device can be latched in a defined position. For such a locking element, various materials, shapes, etc. may be used. It has proven to be advantageous, for example, to use as a latching element a corrugated sheet, which is resiliently mounted on the surface of the base plate. The locking lever can then engage between two elevations of the corrugated sheet, wherein the adjacent projections yield resiliently in the direction of the base plate when the locking lever is in contact with them. For a better sliding of the locking lever along the upwardly curved elevations, the plate facing bottom of the locking lever have a rounded pin or a hemisphere.

The invention further encompasses a sliding door for vehicles, in particular for vehicles for public transport, which has a locking device according to one or more of the described embodiments.

Further advantages, features and expedient developments of the invention will become apparent from the dependent claims and the following description of preferred embodiments with reference to the drawings.

Of the figures shows: a first partial view of a drive device for a swing sliding door with an embodiment of the invention Verriege treatment device; a second partial view of the drive device of FIG. 1; a schematic representation of a locking device in the closed position; and a schematic representation of a locking device according to FIG. 3 in the open position.

Fig. 1 shows a first partial view of a drive device for a sliding door with an embodiment of the locking device according to the invention. Such a sliding door is known for example from EP 1 527 975 A1 and can be carried out accordingly. In this case, the drive device can drive one or two door leaves and move between open and closed positions. For example, one or two door leaves are connected via support arms each with a guide unit which is suspended in a support guide, which is arranged in the upper region of the door portal. The support guide is fixedly connected at its two ends in each case with a frame part and each frame part is preferably guided horizontally and transversely to the door opening in transverse direction fixedly connected to the door portal in one direction. The transverse guides have brackets connected to the door portal in which transversely extending guide rails are arranged in which guide rollers arranged on the frame parts run.

Such a suspension of a carrying guide is shown in fragmentary form in FIG. 1, wherein the carrying guide 53 on the side shown a carrier 67 and on each side in each case a frame part 60 which is guided in a transverse guide, which is mounted on the door portal, not shown. The transverse guide is attached to the door portal via a holder 63 and comprises a guide rail 62, running within the guide rollers 61 of the frame parts 60. The opposite side of the support guide 53 may be carried out analogously, whereby the support guide 53 is displaceable in total transversely to the direction of travel of the associated vehicle. The support guide 53 also has in a conventional manner for each door leaf extending over a part of the door width guide rail on which each guide units are guided (not shown). In this case, the guide rails can be arranged side by side and the guide units can be designed such that they can pass each other unhindered. Due to the above-described transverse guides, the carrying guide together with the door leaves from a closed position, in which the door leaves are in the vehicle wall, displaceable outwardly into a displaced position, in which the door leaves lie outside in front of the vehicle wall, not shown. In this displacement position, the door leaves are displaceable in opposite directions parallel to the longitudinal axis of the vehicle until they are in the fully open position.

The supports 63 for the transversely extending guide rails 62, which are fixedly arranged on the door portal, are firmly connected to one another via a drive plate 64 arranged horizontally and parallel to the carrying guide above the carrying guide 53. the. As a drive unit both for the displacement of the door leaves in the longitudinal direction and for the movement of the support guide in the transverse direction and its locking is a motor 50. This may be, for example, an electric planetary gear motor. However, it is also possible to use other drive types, such as pneumatic drives, for example. The output shaft of the planetary geared motor 50 is in the illustrated embodiment via an angular gear

51 connected to a drive roller which forms a belt drive together with other elements such as a counter-roller and a drive belt. The guide units are each connected to this drive belt via drivers 54 such that their longitudinal movement takes place in opposite directions in each case. At the driver 54 may then be mounted a guide roller 55, with which the drive unit is guided in a guide rail, not shown, to effect the pivotal sliding movement of the door. As can be seen from the drawings, the planetary geared motor 50 is arranged so that its housing extends in the longitudinal direction of the vehicle. Furthermore, the housing of the motor is rotatably mounted on the support guide 53 about an axis of rotation aligned with the output shaft. The housing is further rotatable relative to the housing of the angle gear 51, which can be done in a manner not shown by a switched between the housing plain bearings, ball bearings or bearings.

The rotatable housing of the planetary geared motor 50 is connected via a connecting rod

52 connected to a locking device. The locking device is arranged below the drive plate 64 and interacts in the illustrated embodiment with a locking bolt 65 which protrudes from above through the drive plate 64 in the direction of the locking device and is secured thereto. Further, a recess 66 is provided within the drive plate 64 through which a bolt 41 protrudes from below for an emergency release. The bolt 41 is movable within the curved recess.

Fig. 2 shows this arrangement for ease of illustration without the drive plate 64, so that the underlying components of the locking device 10 are visible. It can be seen here that the locking device 10 comprises a base plate 11, on which a plurality of movable components of the locking device are attached. The base plate 1 1 is mounted on a support 67 which extends between the two lateral frame members 60. This attachment can be done for example via slots and screw. On the base plate 1 1, a locking plate 20 is rotatably mounted in a bearing 14. The bearing 14 may in particular be formed by a bolt which is screwed into the base plate 11. The locking plate 20 has a locking recess 21 into which the aforementioned locking bolt 65 protrudes. Although the drive plate 64 is not shown in FIG. 2, the locking bolt 65 attached thereto is shown to indicate its location within the locking recess 21.

The locking recess 21 may be designed as a slot, but it may also have other suitable shapes. In any case, the shape should be selected so that depending on the rotation of the locking plate 20 about the bearing pin 14, a movement of the door is blocked or released. In particular, such a movement of the carrying guide 53 is to be blocked or released within the guide rails 62 transversely to the longitudinal direction of the vehicle. In the situation shown in Fig. 2, the longitudinal axis of the slot 21 extends approximately parallel to the carrier 67, so that no movement of the door transverse to the carrier 67 is possible. On rotation of the locking plate 20 about the bearing 14 in the clockwise direction, however, the longitudinal axis of the slot 21 is transverse to the carrier 67, so that a movement of the door in this direction is possible. In this case, the position of the locking bolt 65 changes within the slot 21. In order to rotate the locking plate 20 and also to achieve an over-center position of a plurality of levers of the locking device 10, a connecting rod 52 is provided on the housing of the motor 50. Since the housing of the motor is rotatably mounted on the carrier guide in a certain angular range, the connecting rod 52 can be pushed away from the housing and attracted to it, depending on the activation of the motor. The free end of the link rod 52 is pivotally connected to a locking lever 30, which in turn is connected horizontally rotatably via a first hinge 32 to the locking plate 20. The locking lever 30 is designed to be slightly angled, wherein it is horizontally rotatable approximately at its vertex via a second joint 31 with a lever 40. is bound. This reversing lever 40 is in turn mounted horizontally rotatably on the base plate 1 1 via a bearing 13. The locking lever 30 thus hingedly connects the connecting rod 52, the locking plate 20 and the lever 40. The lever 40 may have an approximately triangular shape, the bearing 13 and the hinge 31 are in two angles of this triangle. In the remaining angle of the aforementioned emergency release bolt 41 is attached, which can be actuated by a recess 66 within the drive plate 64.

The articulated connection between the articulation rod 52 and the Verriegelungshe- at 30 can be done directly, for example via a ball joint 35, as shown in the embodiments of Figures 3 and 4. About this hinge 35, the link rod 52 is rotatable in any direction relative to the locking lever 30 so that changes in position during articulation can be compensated. However, it may also be provided, as for example in the embodiment shown in FIG. 2, to realize two directions of rotation separately via an intermediate rod 52 'and two joints 33 and 34. The connecting rod 52 is then rotatable about a first hinge 34 about a horizontal axis opposite the intermediate rod 52, while the intermediate rod 52 is in turn rotatable about a second hinge 33 about a vertical axis relative to the locking lever 30.

Fig. 3 shows the locking device 10 in the closed position. In this case, the locking plate 20 is rotated in the bearing 14 so that the dashed lines shown locking pin 65 within the slot 21 blocks a movement transverse to the carrier of the drive device. This direction of movement is indicated in FIG. 3 with VR. Furthermore, the locking lever 30 and the lever 40 are in Übertotpunktsteilung. In this case, a connecting line W between the bearing 13 of the reversing lever 40 and the joint 32 between the locking lever 30 and the locking plate 20 is assumed. Another connecting line VU is between the bearing 13 of the reversing lever 40 and the joint 31 between the locking lever 30 and the lever 40. In the Übertotpunktsteilung of the two levers 30 and 40 is between these two connecting lines of the angle a. The levers 30, 40 can be moved by actuation of the articulation rod 52 via the motor from this Übertotpunktsteilung what the link rod 52 pulls the left in Fig. 3 end of the locking lever 30 in the direction of the arrow towards the engine, as shown in FIG is. As a result, the locking lever 30 pivots counterclockwise, which can only be done by simultaneous rotation of the reversing lever 40 and the locking plate 20 in their bearings 13, 14. The lever 40 rotates clockwise about the bearing 13 and the same applies to the locking plate 20 in the bearing 14. In this way, the two connecting lines VV and VU are temporarily on each other until they move apart again and so the dead center is overcome. In the reverse closing operation and a movement of the connecting rod 52 away from the engine, the two connecting lines W and VU are temporarily on top of each other until they lie in the Übertotpunktsteilung of FIG. During the opening operation, at the same time, the locking plate 20 rotates about the bearing 14 so that the locking long hole 21 comes into a position transverse to the carrier 67, ie a movement of the door transversely to the carrier is possible because the locking bolt can now move within the slot 21. If, instead of a slot, an outwardly open locking slot is used, it can also be provided that the locking bolt moves completely out of the locking slot. In the situation of Fig. 4, a movement of the locking device 10 has already taken place in the direction of VR when opening the door, so that the indicated locking pin 65 is no longer in the region of the base plate 1 1, but transversely offset to this. The carrying guide 53 has thus moved together with the locking device 10 within the guide rails 62 in the direction of the vehicle exterior.

To the door in emergency situations, however, without articulation by the

Anlenkstange 52 and to open the engine, the lever 40 can also be used for an emergency release. For this purpose, for example, the bolt 41 is mounted in a region of the reversing lever 40, and the lever 40 can be rotated by manual movement of this emergency bolt 41 in a clockwise direction around the bearing 13. The manual actuation can be carried out in particular via at least one Bowden cable, which in conjunction with a manually triggered emergency brake stops. In this way, the Übertotpunktsteilung between the lever 40 and locking lever 30 can be canceled. In this case, the emergency bolt 41 moves in its operation within the recess 66 (see FIG. 1), so that the control of the bolt 41 can be made above the drive plate 64.

It can also be seen from FIGS. 3 and 4 that the base plate 1 1 has a depression 12 in the region of the locking plate 20. In the area of this recess 12, the thickness of the base plate 1 1 is reduced so far that a boom 22 of the locking plate 20 can move in their rotation within the recess 12. In this case, the base plate 1 1 facing bottom of the boom 22 is closer to the base plate 1 1 than the rest of the underside of the locking plate 20. Further, the Fig. 4 it can be seen that the recess 12 within the base plate 1 1 in particular in the region of the bearing 14th is curved in order to have for the attachment of the bearing 14 on the base plate 1 1, the full thickness of the base plate 1 1 available.

In this way, by appropriate shaping of the recess 12, a stop 12 'are formed, on whose surface the locking plate 20 abuts with the boom 22 in the maximum open position. However, it is also possible to provide a different type of stop against which the locking plate 20 or other components of the lock strike in the unlocked position.

Further, the boom 22 may be connected via a connecting rod 23 with an attached to the opposite end of the support guide 53, also rotatably mounted locking plate, whereby both locking plates synchronously via a motor 50 and the connecting rod 52 is rotatable. In the area of the second locking plate, a locking element such as a bolt can then also be attached to the drive plate 64 so that a locking of the door can take place on two sides of the carrying guide 53.

In order not to rotate the locking lever 30 in the Übertotpunktsteilung further clockwise, ie not stronger in the Übertotlage, a stop on the base plate 1 1 may be provided, on which the locking lever 30 comes into abutment in a defined position. For example, the locking lever 30th be designed so that it rests on the bearing 13 in the maximum Übertotpunktsteilung. In one embodiment of the invention, a plastic block in the region between the articulation point 35 of the articulation rod 52 and the hinge 31 is attached to the lever 40 to the locking lever 30, wherein the plastic block preferably has a concave outer contour which comes to rest on the periphery of the bearing 13 at the stop ,

On the base plate 1 1, a locking element 15 may further be formed, with which with the connecting rod 52 (or the intermediate rod 52 ') connected to the end of the locking lever 30 has contact when it moves across this area. For this purpose, for example, a corrugated latching plate 15 may be attached to the base plate 1 1. This corrugated sheet 15 projects so far away from the base plate 1 1, that it has contact with the Anlenkstange 52 and the hinged end of the locking lever 30 when they move over the locking plate 15 away. The locking lever 30 may have, for example, at the bottom of a contact point in the form of a ball or a rounded bolt, which comes into contact with the elevations of the locking plate 15. This can be a

Locking of the locking lever 30 to the base plate 1 1 carried out when the contact point of the locking lever 30 engages in a certain position between two elevations of the wave-shaped plate 15. In this case, the latching plate 15 is preferably mounted resiliently on the base plate 1 1, so that it gives in contact with the locking lever 30 and springs back again when the contact point of the locking lever 30 is engaged in a depression. Against the spring force of the locking lever 30 can then be moved out of the sink out again, the locking plate 15 yields again, while the locking lever 30 slides over an adjacent survey. Overall, such a locking element 15 is suitable as additional protection, however, that the Übertotpunktsteilung is inadvertently dissolved in the locked state of the locking device. LIST OF REFERENCE NUMBERS

10 locking device

1 1 base plate

12 deepening

12 ', 12 "contour of the depression

13 Bearing of the reversing lever

14 Bearing of the locking plate

15 locking element, latching plate

20 locking plate

21 locking recess, oblong hole

22 outriggers

23 connecting rod

30 locking lever

31, 32,33,34 joint

35 ball joint, articulation point

40 lever

41 Actuator, bolt, emergency release

50 engine

51 angular gear

52 connecting rod

52 'intermediate rod

53 carrying guide

54 drivers

55 leadership role

60 frame part

61 roll

62 side rail, guide rail

63 bracket

64 drive plate

65 locking element, locking bolt

66 recess

67 carriers

Claims

claims

Locking device (10) for sliding doors of vehicles, in particular public transport vehicles, comprising at least one door leaf displaceable in the longitudinal direction of the vehicle and a drive (50) for moving the door leaf between a closed and an open position, wherein the locking device (10) a linkage (20; 30; 40) engageable to lock the door in the closed position to an over-center position,

characterized in that the locking device (10) comprises a base plate (11) on which a locking plate (20) and a bell crank (40) are rotatably mounted in respective bearings (13, 14) in a plane parallel to the plane of the base plate, and the reversing lever (40) and the locking plate (20) are connected to one another via a respective locking lever (30), wherein the reversing lever (40), the locking lever (30) and the locking plate (20) are connected by articulation of the locking lever (30). 30) can be brought into a position in which the connecting line (W) between the bearing (13) of the reversing lever (40) and the joint (32) between the locking lever (30) and the locking plate (20) and the connecting line (VU) between the bearing (13) of the reversing lever (40) and the joint (31) between the reversing lever (40) and the locking lever (30) in Übertotpunktsteilung and this Übertotpunktsteilung countered by one Zte articulation of the locking lever (30) is releasable, wherein the locking plate (20), the reversing lever (40) and the locking lever (30) on the same side of the base plate (1 1) are arranged.

Locking device according to claim 1

characterized in that the bearings (13; 14) for rotatably supporting the locking plate (20) and / or the reversing lever (40) relative to the base plate (1 1) each comprise a bolt which is fixed to the base plate (1 1).

Locking device according to claim 2, characterized in that the bolt is screwed into the base plate (1 1).

Locking device according to one or both of Claims 2 and 3, characterized in that the deflection lever (40) and / or the locking plate (20) are each formed by a plate on which a hollow cylinder is formed in the region of the respective bearing (13; is, whose longitudinal axis is perpendicular to the plane of the deflection lever (40) and / or the locking plate (20) and whose length is greater than the thickness of the respective plate, wherein a bolt of the respective bearing (13; 14) is rotatably guided in this hollow cylinder ,

Locking device according to one or more of claims 1 to 4, characterized in that the locking plate (20) has a locking recess (21) into which a locking element (65) fixedly attached to the vehicle engages at least in the closed position of the locking device (10), wherein the locking plate (20) is in the closed position such that the locking element (65) blocks movement of the locking plate (20) transverse to the longitudinal direction of the vehicle while in the unlatched position it is such that the locking element (65) moves the locking plate (20) transversely to the longitudinal direction of the vehicle permits.

Locking device according to claim 5,

characterized in that the locking recess is a slot (21).

Locking device according to claim 6,

characterized in that the locking element (65) is movable in the unlocked position of the locking device (10) during a movement of the locking plate (20) transversely to the longitudinal direction of the vehicle within the elongated hole (21).

8. Locking device according to one or more of claims 1 to 7, characterized in that on the reversing lever (40) an actuating element (41) for canceling the Übertotpunktlage between the reversing lever (40) and the locking lever (30) is formed. 9. Locking device according to claim 8,

characterized in that the actuating element is a bolt (41) projecting from the reversing lever (40).

10. Locking device according to one or more of claims 1 to 9, characterized in that on the base plate (1 1) a locking element

(15) is formed, in which the locking lever (30) in a locked position of the locking device (10) can be latched in a defined position. 1 1. Locking device according to claim 10,

characterized in that the latching element (15) is a corrugated sheet (15) which is resiliently mounted on the surface of the base plate (1 1).

12. Locking device according to one or more of claims 1 to 1 1, characterized in that the locking lever (30) abuts in the unlocked position of the locking device (10) in a defined position on a stop on the base plate (1 1).

13. Locking device according to one or more of claims 1 to 12, characterized in that the locking lever (30) in the locked position of the locking device (10) in a defined position against a stop on the base plate (1 1) abuts.

14. Locking device according to claim 13,

characterized in that the locking lever (30) abuts the bearing (13) of the reversing lever (40).

15. Swing-sliding door for vehicles, in particular for vehicles for public transport, characterized in that it comprises a cross-linking device according to one or more of claims 1 to 14.