MXPA98009770A - Device for closing and opening a sliding door, particularly for vehicu - Google Patents

Abstract

The invention relates to a device provided with a transmission unit (1), which performs the displacement and has a linear transmission system (8, 12) provided with an electric motor (5) and a guide device (9, eleven). The linearly formed driven member of the linear transmission system (12) and a member of the guide device (9) are attached on the other hand to the door (3), and the transmission member of the linear transmission system (5, 7, 8) and the other member of the guide device (11) are fixed on the other hand to the assembly (6), which is supported by a support arrangement (22, 23, 24, 25, 26) connected to it. the wall (4). The support arrangement transforms a movement of the assembly substantially perpendicular to the wall in an oscillating movement. A closing unit driven by an electric motor is also provided, which opens and closes the sliding door by performing a movement perpendicular to the wall when placed to close the opening. The control means, which have position switches, control the drive unit and close the

Description

DEVICE FOR CLOSING AND OPENING A SLIDING DOOR, PARTICULARLY FOR VEHICLES The sliding doors are provided especially in vehicles in which on the one hand passage to the internal space of the vehicle is provided, for example in small buses or other driving vehicles. A sliding door is generally made in such a way that in the closed position it closes flattening with the surrounding body and in an open state it moves parallel to the wall in at least one guide rail along the body, lately it is it has sharpened the need especially for certain purposes of application for example for taxis loading vehicles, ambulances or the like, the power to automatically move and close a sliding door of this type.

From DE-A-38 31 698, there is known a device for opening and closing a sliding door especially vehicles which closes an opening in a wall, the device, has a linear impeller provided with an electric motor made with a chain tensioned with a pinion that there grabs to move the sliding door parallel to the wall of the vehicle, as well as to swing an assembly that carries the sliding door. Also I know REF .: 028846 provides a guide device consisting of a guide rail fixed to the sliding door as well as fixed guide rollers in the mounting to guide the sliding door parallel to the wall. The driven, linearly constructed member of the linear driver so the tensioned chain is fixedly installed on the sliding door. The assembly is supported by a support arrangement that is attached to the wall and realized as a parallelogram of guides. The pivot lever of the guide parallelogram is mounted partly on the wall and on the other hand in the assembly with vertical axes of rotation so that a carrier function for the sliding door can be realized. The drive motor is fixed to a pivoting lever belonging to the guide parallelogram which transfers a movement of the sliding door assembly essentially perpendicular to the wall with a tilting movement.

This device according to the state of the art has the disadvantage that numerous measures are necessary in the chassis of the vehicle to place a guide parallelogram which can swing and carry the sliding door. This is especially true in a later equipment of the device for opening and closing the sliding door of great disadvantage, it is also disadvantageous that despite the automatic closing process, the self-locking does not take place automatically, which represents a risk for safety.

WO-93/17211 discloses a device for opening and closing a horizontally movable vehicle door having an endless screw connected to the bodywork. The worm is received on a rail. A carriage is arranged on the screw which is translationally movable on the rail, where the worm is driven by a motor, the carriage is connected to the door by means of a damped connecting rod which preferably takes an angle of less of 25 ° with respect to the worm. In addition, a device for putting and removing the bolt is provided in the door, a process carried out by means of an electromagnet.

The invention proposes the task of creating a device for opening and closing a sliding door that opens and closes or blocks the door safely and presents a simple structure as well as little need for space and with this also be convenient for a later equipment.

This problem is solved with the characteristics given in claim 1, by means of the measures mentioned in the subclaims, other conformations and advantageous improvements are made possible.

In accordance with the present invention, the device for opening and closing a sliding door that is arranged in at least one longitudinal guide provided on a wall of the vehicle in a displaceable manner, has a unit of travel that performs the displacement movement and that presents a linear driver and a guiding device that have, an electric motor here the driven member of linear linearly formed impeller and a member of the guiding device on the one hand are fixed to the door and the drive member of the linear driver and the other member which acts in conjunction with the guide member on the door side and belongs to the guide device, is fixed in a mount which is supported by an arrangement of support protruding in conjunction with the wall. The support arrangement is provided with at least one pivoting lever shown each time articulated that on the one hand is attached to the assembly and on the other hand is fixed on a bearing place that is attached to the wall, lever that transfers a movement of the assembly essentially perpendicular to the wall in a tilting movement. Furthermore, a closing unit driven by the mentioned electric motor or by another is provided, which locks or opens the sliding door in its position in which it covers the opening of the vehicle when performing a movement perpendicular to the wall. A control installation with a position switch controls the drive and closing unit.

On the basis of this configuration, the device can be structured in such a way as to open and close a sliding door that has a relatively simple construction and because of the transmission of the movement of the assembly to the travel unit essentially perpendicular to the wall in one movement tilting, is done with space saving. Especially when the device is equipped to open and close a sliding door in existing vehicles in order to perform a more comfortable mode, or to transform a small bus into a safety actuator, it will be the maintenance of the longitudinal guide provided in the vehicle that serves to maintain the carrier function of the sliding door, a decisive advantage, since with that the installation costs could be reduced.

The closure unit advantageously has a linearly displaceable closure member and a spring pin member which is in engagement with the closure member where the closure member and / or the spring pin member are constructed in such a way that the process of the presentation of the internal gear is carried out simultaneously with the movement perpendicular to the wall. This is advantageously achieved because the outer surface of the closing member and / or the spring-pin member are constructed in an inclined manner.

It is particularly advantageous if the linear motor driven impeller and the guide device as well as the mounting of the travel unit or drive are arranged to form a pre-assembled unit in a carrier part, preferably in the form of a tray. Because of this embodiment, the assembly of the device for opening and closing a sliding door can be simplified since the individual parts of the drive unit can be preassembled on the support part so that for the assembly of the drive unit the Support only has to be connected to the door, for example, by gluing or screwing.

A particularly simple construction of the linear transmission system is performed as a toothed rack with a pinion driven by the electric motor and so corresponding an advantageous design of the guide device is made as a linear guide rail having a drive carriage including the latter at least in part, the drive carriage is advantageously fixed at that point on the mount = n which the greatest force acts It is also advantageous that the pivoting lever of the support device is constructed as a sliding bar arranged in a displaceable manner in a guide sleeve, the guide sleeve is mounted in a rotating and rotary manner. In this case, the movement perpendicular to the door or wall is transformed into a movement of the displacement of the turning lever or of the sliding rod in the guide sleeve and a turning movement of the guide sleeve. By doing this the movement of the guide sleeve takes place near an axis that is parallel to the wall.

In certain cases it may be advantageous if the sliding bar member simultaneously forms the closing unit as a spring pin member, the closing member having a cone or an inclined surface, which slides along a circumference of the sliding bar.

The closure member can be constructed in part as a toothed rack, which can be driven by a pinion connected to the electric motor.

In a further exemplary advantageous embodiment, the pivot lever is constructed as a bar, which is preferably fixed at one end via a ball joint to the bearing and at the other end preferably via a ball joint to a lever additional connected to the assembly. Of course, other connections may be provided, for example universal joints. In this arrangement, the rotational movement of the turning lever or of the additional lever is performed in a horizontal plane, the levers in the fully open state and in the fully closed state advantageously adopt such a position located outside of the dead center, the dead point is defined as a position in which the turning lever is located parallel to the wall and forms an angle of 90 ° with the additional lever.

It is particularly advantageous if the toothed rack of the closing unit is adapted adjacent the toothed rack of the drive unit on the door in such a way that only an electric motor with a pinion for the drive unit has to be provided. and for the closing unit and the pinion successively enters the gear first with a toothed rack and then with the other rack. Due to this arrangement, the device according to the invention can also be simplified and constructed at low cost.

Due to the condition of a safety device for crushing, which is connected to the control device and which by the application of a predetermined force on the door opposite the displacement movement disconnects the electric motor from the drive unit or changes its direction of rotation completely, the use of the device to open and close is also possible in the transport of passengers. A simple safety device for mechanical crushing is formed since the bearing of the pivot flange is movably mounted against a variable, adjustable prestressing force defined or the lever itself extends. or shortens against a variably adjustable spring force and a switch device connected to the control device is provided which, depending on the travel path, emits a signal to drive the electric motor. Because of such a construction a force exerted on the latter when sliding the door lock, for example due to an obstacle in the door opening, such as an arm or a hand of a person, is transferred directly to the bearing provided with the prestressing force and when this force is greater than the prestressing force it connects the switching device assigned to the bearing and emits a signal to the control device, which then directs the electric motor. By doing this the switch device can be of different construction, all possible types that are conceivable, for example an electromechanical switch, an inductive switch, capacitance-magnetic, piezoelectric or the like.

Preferably, sensors are provided, which detect the start and end of the displacement path and transmit a corresponding signal to the control device, which makes the safety device inoperable for crushing otherwise due to the force of acceleration when the door begins to slide from the open position to the closed position, which is greater than the force necessary to operate the switch device and due to the frictional force at the end of the displacement path, which is also greater than the switching force, this would respond and could result in an oscillating movement.

The closing unit is preferably adapted in such a way that the closing member or the spring pin member is provided in the position in which the closing of the sliding door is usually provided. By this means no additional official approval must be promised in the installation of the closing unit.

The exemplified embodiments of the invention are illustrated in the drawings and are explained in greater detail in the following description. The drawings show: FIG. 1 a schematic view towards a first exemplified embodiment of the drive unit transverse to the sliding door; Fig. 2 a schematic view towards the lever arrangement of the embodiment exemplified according to Fig. 1, additionally the safety device for crushing is provided; Fig. 3 a side elevation of an exemplified embodiment of the closure unit; Fig. 4 a view of the closure unit according to Fig. 3; Fig. 5 a schematic view of parts of the drive unit and the closure unit according to a further exemplified embodiment of the invention; Fig. 5b a view of the arrangement according to Fig. 5a transverse to the sliding door; Fig. 6 a schematic view of the drive unit and the closure unit according to a further exemplified embodiment of the invention transverse to the sliding door; Fig. 7 a view corresponding to Fig. 6, but in the closed state; Fig. 8 a schematic view of the closure unit according to Fig. 6 and Fig. 7 parallel to the wall; Y Fig. Development of the turning lever 24.

The device for opening and closing a sliding door, in particular for vehicles, described in Figs. 1 to 9 consists of a drive unit 1 (for example, Fig. 1) and a lock unit 2 (for example, Figs 3 and 4) wherein the drive unit 1 ensures the movement of the sliding door 3 of substantially in the longitudinal direction with respect to the vehicle and the closing unit 2 ensures a movement to close or lock the sliding door 3 perpendicular to the longitudinal direction of the vehicle. In the open state, the sliding door 3 fits balanced parallel to the body and slides in at least one guide, which is not shown provided in the body, this guide being bent slightly inwards at one of its ends so that in the region of the opening the sliding door 3 moves towards the opening in a combined movement in the longitudinal direction with respect to the wall and perpendicular to the wall, by means of which the closing or blocking path, which is controlled by the Closing unit 2 is small, that is to say the door is forcibly guided by the guide close to the body so that only a very small space has to be placed by the closing unit 2.

Since this transmission part is essential, the drive unit has a drive motor 5, which is fixed to a base plate 6. The motor shaft 7 of the drive motor 5 passes with free rotation through the base plate and carries a transmission sprocket 8. The linear guide rail 9 which extends over the entire width of the sliding door 3 is rigidly connected to the sliding door 3 via a fixing strut 10. The linear guide rail 9 is it slides on a drive carriage 11, or vice versa, which is secured with bolts to the base plate 6. Attached to the fixing strut 10, also on the total width of the sliding door 3, is a toothed rack 12, which is in gear with the pinion 8 driven by the electric motor 5.

In the immediate vicinity of the edges, the linear guide rail 9 has grooves, which are not illustrated, which extend in the longitudinal direction on both sides of each edge and which in the cross section have the shape of a segment of a sphere. The drive carriage 11 is fixed on the guide rail 9 in the form of a U or in a molded manner. In the positions assigned to the guide grooves, the drive carriage 11 has depressions to accommodate a row of balls in such a way that four rows of balls are presented, which slide in the distributed guide grooves of the guide rail 9.

A lever 22 is connected fixedly to the base plate 6 approximately centrally with respect to the rectangular drive carriage 11, which is connected via a ball joint 23 to a bar 24, which is joined via a second joint ball 25 to a bearing 26 rigidly connected to the chassis 4 of the vehicle. The bearing 26 can be provided in the region of the vehicle opening passages or at another appropriate point, for example under the floor of the vehicle.

In Fig. 2 the parts of the device according to Fig. 1 are illustrated, in addition a safety device for crushing 40 is provided here. The bearing 26 is in this case fixed to a displacement part 41, which in the example mode has two holes for receiving the sliding sleeves 43 adapted in each case on an axis 42. The shafts 42 are fixed by a mounting part 44 connected to the chassis 4. The mounting part 44 has struts between which the sliding sleeves 43 and the displacement part 41 they adapt and allow a movement of longitudinal displacement of the displacement part 41 within the present joints. A compression spring 46 adapted on an axis 45 is provided between the mounting part 44 and the displacement part 41., the compression spring 46 is secured together with a lever strut 47 connected to the mounting part 44 and a nut 48 connected to the sliding part 41. The prestressing force exerted by the compression spring 46 on the displacement part 41 It is adjustable. This is implemented in this case, as a possible variant for example, since several holes 63 are presented on the shaft 45. With the help of a disk 62 and a pin 61 which is pushed into one of the holes 63, the prestressing path and here the prestressing force of the spring 46 can be fixed. With the mounting part 44 a microswitch 49 is adapted to the contact of the switch, which works in conjunction with the displacement part 41. The microswitch 49 is connected to the control device which is not illustrated and inter alia controls the drive motor 5 of the drive unit 1. The displacement part 41 which slides on the sliding sleeves 43, the compression spring 46 and the microswitch 49 together form a safety device for crushing, which is actuated when a force directed in the direction of displacement of the door towards the open position is greater than the force of the compression spring n 46, taking the transmission losses under consideration, as a result of which the displacement part 41 changes in the direction given by the arrow 50 (direction of travel in the open position).

Of course a different design can be provided for the safety device for crushing 40. Thus, for example, only one shaft 42 with sliding sleeves 43 can be provided. The essential issue is that the bearing 26 is movably mountable against of a prestressing force and in its longitudinal movement actuates a switch. Similarly, a safety device for crushing can be provided according to Fig. 9, which is provided for a fixed bearing 26 and a variable length turning lever 24 (70 in development). In this case this comprises a telescopic bar 70, the components of which 78, 80 can be pushed against each other against the force of a spring 72. Depending on the arrangement of the components 78, 80 the telescopic bar can be constructed as a tension or compression model. The prestressing force of the spring 72 can be adjusted with the help of a screw connection 74. In a present force which has the consequence of a certain change in the length of the telescopic rod 70, an initiator 76 is activated, which is connected to a control device which is not shown, which inter alia controls the drive motor 5 of the drive unit 1.

In Figs. 3 and 4 there is illustrated a closing unit 2, which operates with the drive unit 1 and also has an electric motor 30 connected to the control device, which is not shown and also to the chassis 4 or the vehicle wall via a retaining plate 31. On the shaft 32 of the motor 30 is fixed a pinion 33, which is in mesh with a toothed rack 34. The toothed rack is directed on a guide, which is not illustrated in detail in a more rigid manner it is connected to the chassis, which has at its end a closing member 35, which comes into contact with a spring pin member, which normally represents the bolt, fixed to the door. As can be seen in Fig. 4, when closing the closure member 35 it has an inclined surface and the spring pin member 36 is provided with a bent surface. With the displacement of the toothed rack or the closure member 35 forward, by the inclined surface of the closing member 35 sliding along the bent surface of the spring-pin member 36, the door 3 moves in the direction specified by the arrow 39. The spring pin member 36 and the closure member 35 can also be constructed in different ways, the essential point being that at the same time that the closure member 35 is transferred to the closing position, Door 3 moves at right angles to the wall. The same applies to the transfer to the open position.

The spring pin member 36 and the closing member 35, ie the toothed rack, should be arranged in such a way that the manually closed bolt is used in a usual manner provided on the sliding door of a vehicle, or the position to which it is attached. the closure is fixed.

To control the closing unit 2, the toothed rack guide 34 is provided with end switches 37 which work in conjunction with a limit stop 38 fixed to the toothed rack 34 and which are connected to the control device.

The mode of operation of the device described in Figs. 1 through 4 is as follows.

When the sliding door 3 is in the open position, in which it is balanced balanced parallel to the vehicle wall and moves in the closed position, the drive motor 5 is activated via a switching signal from the control device. The control device can be connected, for example, to an input keyboard on the instrument panel of the vehicle, this is possible with commands to open and close the sliding door 3 which is passed through the driving wheel via the keyboard. In the fully open position of the sliding door, the lifting arrangement consisting of the lever 22, bar 24 and ball joints 23 and 25 are in the position illustrated in Fig. 2.

After switching over the drive motor 5, the drive pinion 8 rotates and moves along the toothed rack 12 as a result of which the door 3 moves in the longitudinal direction opposite the arrow 50, while at the same time the linear guide rail 9 slides on the drive carriage 11. When the sliding door 3 moves along the guide of the sliding door fixed on the body 4 in a forced manner it is guided towards the body at the end of the longitudinal movement by the bent guide or the opening in the body in such a way that there is only a completely small space between the door 3 and the body when the door is located opposite the opening of the door.

During the guidance of the door to the opening, the bar 24 rotates via the joints 23 and 25 in a horizontal plane, ie in the plane of the paper of Fig. 2, near the bearing 26. In the region of the guide rail linear 9 end position switches are provided, which can be inductive, capacitive, mechanical, optical or the like, which are connected to the control device, a final position switch that sends a signal to the control unit that the door sliding is located in the opposite position to the opening of the door. Then the control device connects the drive motor 5 and the motor 30 of the closing unit 2 on which the toothed rack 34 is moved via the pinion 33. By doing so the sliding door 3 moves completely to the opening of the gate through the interaction of the closure member 35 and the spring pin member 36 and the bar 24 rotates in its final position, which assumes approximately the same angle with respect to the longitudinal direction of the vehicle towards the other side as the bar 24 in the open position. The key factor is that in the closed position of the door, the bar 24 is rotated beyond the dead point of the turning movement since then the starting movement is easier. In this case the dead point is defined as the position in which the bar 24 is in the longitudinal direction of the vehicle, ie at 90 ° with respect to the lever 22.

If during the closing of the sliding door 3 an obstacle, for example a person or the arm or hand of a person, blocks the movement of the door, a force is exerted on the bearing 26 via the linear guide rail 9, the carriage of actuation 11, the lever 22, the joint 23, the bar 24 and the joint 25 as a result of which it moves in the longitudinal direction against the force of the compression spring 46. By doing this the displacement part 41 acts on the switching member of the microswitch 49, which transmits a switching signal to the control device. The control device immediately disconnects the drive motor 5 from the drive unit 1 or connects the motor to the opposite direction of rotation, as a result of which the door moves once more in the direction given by the arrow 50 In such an embodiment, the security device for crushing can also be called an "inversion device". This prevents the crushing of people or objects during the automatic closing of the door 3.

The safety device for crushing according to Fig. 9 works in an analogous manner.

The spring 46 or 72 allows adjustment of the switching force in which this should be actuated is called safety for crushing. This must be of such magnitude that no damage occurs. The acceleration force that occurs at the start to move the door 3 from the open position to the closed position in the usual manner is greater than the fixed switching force so that the control device immediately connects the motor 5 again. This must be prevented and a sensor is provided, for example a proximity switch, which is effective at the start to move the door, for example more than 2 cm and which transmits a signal to the control device through which the safety device is inactive, ie it is removed from the operation. In a similar manner, at the end of the path of displacement of the door, the frictional force is equally greater than the switching force, as a result of which the safety device 40 is actuated once more. Therefore, at the end of the displacement path there is also provided a sensor, which activates the safety device for crushing along a very small travel path.

In the exemplified embodiment present according to Figs. 2 and 9 a safety device for mechanical crushing is provided. Of course a safety device for electronic crushing is also possible, in which the force acting on the door is detected via force sensors and a control program determines with a microcomputer if irregular force conditions occur. In such exemplified embodiment only the bearing '6 is provided according to Fig. 1.

The opening of the sliding door occurs in the same way in reverse sequence.

Figs. 5a and 5b show a further exemplified embodiment of the drive unit 1 and the closing unit 2, where, however, only the most important parts are visible. The key idea in this exemplified embodiment is that only one motor and one transmission pinion are used for the drive unit 1 and for the closing unit. The drive unit is of similar construction as that in Fig. 1 and has the toothed rack 12 for driving movement, the guide rail 9 for the drive carriage 11 and correspondingly the base plate 6 for accommodating the drive carriage 11, the electric motor which is not shown and the pinion 52. As in the embodiment exemplified above, these parts are adapted to the door. According to Fig. 5a the closure unit 2 has a toothed locking rack 51 which is also fixed to the door and which is adapted perpendicular to the toothed rack 12 for the drive unit. The coordination of the guide rail 9 of the drive unit, the toothed rack 51 of the closing unit and the pinion 52 is such that with the closing of the door until the final movement of the drive unit 1, the pinion 52 is in engagement with the toothed rack 12 of the drive unit and exits the gear at the end of the closing movement and engages the tooth of the closing rack 51.

According to Fig. 5b, the toothed rack 51 is moved by the transmission sprocket 52 in the direction indicated by the arrow 53, the closing direction being shown by the arrow as upwards. The reference number 54 schematically indicates the spring pin member or the safety latch, which in this case is rigidly connected to the chassis, for example the strut C of a vehicle.

Figs. 6 through 8 show a further exemplified embodiment of the present invention, since the same reference numerals designate the same parts as in Figs. 1 to 5 its description is omitted.

The drive unit 1 is constructed in a manner similar to the drive unit in Fig. 1, while the specific mode differs in the support device of the drive unit.

On the base plate 6, approximately centrally with respect to the drive carriage 11, a bolt 13 is fixed in a fixed manner on which an arrow tongue 14 is fixed. The arrow tongue 14 serves as a mounting for a lever axial thrust 15, which is mounted at one of its ends in a rotational manner at least in a plane perpendicular to the longitudinal direction of the vehicle via a rotating pin 16. The bearing is preferably constructed as an oscillator bearing for work heavy, which allows certain degrees of freedom in different directions.

The axial thrust lever 15 is displaceably accommodated by its free end in a guide sleeve 17, which is rotatably mounted, via a pivot pin 18 fixed at right angles to its outer circumference, in a mounting 19 of rigid manner connected to the chassis 4. According to Fig. 8, the closing unit 2 has an electric motor 20 which in the exemplified embodiment is built as an axis motor and which on the rigidly mounted is fixed to the shassis. Shaft shaft motor 20 is connected to the closing cone •twenty-one. In the open state of the sliding door, the closing cone is located in the retracted state, so that it can freely rotate the axial thrust lever 15. With the closing of the sliding door 3, the closing cone 21 comes out and according to Fig. 7 it pushes the end of the axial thrust lever 15 towards the opening and therefore fixes the axial thrust lever 15.

When the sliding door 3 is located in the open position shown in Fig. 6 and moves in the closed position, the drive motor 5 is activated as in the first exemplified embodiment and moves in the closed position and at the end of the movement longitudinally forced is guided towards the body by the curved guide. By doing so, the axial thrust lever 15 moves in e_. guide sleeve 17 in the axial direction, the guide sleeve 17 which rotates counterclockwise and simultaneously rotates the end of the axial thrust lever near the pivot pin 16. After the drive motor 5 has been disconnected, the shaft motor 20 is driven. The tip of the cone of the closing cone 21 is adapted with reference to the axial thrust lever 15 located almost in a perpendicular position, in such a way that the central axis of the lever axial thrust 15, as seen in Fig. 7, moves slightly to the left. The shaft motor 20 now pushes out the closing cone 21 as a result of which the latter slides along the circumference of the axial thrust lever by its tip moves the latter by its upper end to the left in the drawing according to Fig. 7. As a result of this, at the other end the bolt 13 moves inwards and the sliding door 3 slightly seals the opening of the vehicle door. In doing so, it has a closing cone 21 and an axial thrust lever 15 for the closing mechanism. The slope of the cone 21 is decisive for the closing path perpendicular to the body which is transverse by means of the closing unit 2. The opening of the sliding door occurs in the same way in reverse sequence.

Instead of the shaft motor 20 and the closing cone 21, the toothed rack with drive pinion provided according to FIGS. 3 and 4 In this exemplified embodiment according to Figs. 6 to 8 a safety device for crushing is also provided in the same manner to Fig. 2, the pivoting pin 18 extends with a smaller diameter. The end of the pivot pin is mounted on a movable lever strut, the compression spring fits on the pivot pin 18 between the passage and the lever strut.

It is noted that in relation to this date, the best method known by the applicant to carry out the aforementioned invention, is the conventional one for the manufacture of the objects to which it refers.

Having described the invention as above, the content of the following is claimed as property.

Claims (16)

1. Device for opening and closing a sliding door especially for vehicles, which closes an opening in a wall and in essential parallel to the wall arranged in at least one longitudinal guide placed on the wall in a displaceable manner, with a drive unit which takes the displacement movement and having a linear transmission mechanism provided with an electric motor and a guiding device, characterized in that the linearly constructed driven member of the linear drive mechanism and a member of the guide device on the one hand is fixed to the door and the driving member of the linear transmission mechanism as well as the other member which acts in conjunction with the guide member by the side of the door of the guide device and on the other hand is fixed in an assembly, which is supported by the arrangement of support that is attached to the wall with a closing unit driven by the aforementioned or by another electric motor, the The sliding door in its closing position of the opening is locked and unlocked when performing a movement perpendicular to the wall and controlled with a control device comprising a position switch and the closing drive unit, where the support arrangement presents at least one pivotably mounted pivoting lever that is on the one hand in conjunction with the assembly and on the other hand with a mounting position attached to the wall, which performs a movement of the assembly in a pivoting movement essentially perpendicular to the wall.

2. Device according to claim 1, characterized in that the closing unit has a linearly movable latching member and a pin member which does so with a closing member, wherein the closing member c and / or the spring-loaded member is built in such a way that the process of internal engagement or external engagement initi a movement of the door perpendicular to the wall.

3. Device according to claim 2, characterized in that the surface of the closing member and / or the spring pin member is constructed inclined.

4. Device according to claims 1 to 3, characterized in that the linear drive with electric motor and the guide device as well as the assembly of the drive unit are arranged to form a unit preassembled in a carrier part preferably in the form of a tray, which It is attached to the door.

5. Device according to claims 1 to 4, characterized in that the linear pulse has a toothed rack joined to the door and a pinion driven by the electric motor fixed in the assembly and the guide device has a linear strip rail and a carriage of gear that at least partially grasps the line guide rail.

6. Device in accordance with the claims 1 to 5, characterized in that the pivoting lever of the support device is constructed as a push rod arranged in a displaceable manner in a guide sleeve, where the guide sleeve is rotatably mounted in the position of the bearing.

7. Device according to claims 1 to 5, characterized in that the pivoting lever is constructed as a bar which is fixed on the one hand by a ball-and-socket joint to the bearing position and on the other hand preferably by a ball-and-socket joint on another lever fixedly attached to the assembly.

8. Device according to claims 1 to 7, characterized in that the closing member is at least partly constructed as a toothed rack that is driven by a pinion that is in conjunction with the electric motor.

9. Device according to claim 6, characterized in that the push rod simultaneously forms the spring pin member of the closing unit where the closing member has a cone or an inclined surface that slides in along but counter-clockwise to the periphery of the push bar.

10. Device according to claim 8, characterized in that the toothed rack of the closing unit is arranged in such a way in the vicinity of the toothed rack of the drive unit in the door that is only needed for the drive unit and for the An electric motor with a pinion is locked, and the pinion successively engages first with a toothed rack and then with the other.

11. Device in accordance with claims 10, characterized in that a device for protecting the clamp is connected to the control device which, when applying a predated force to the door, is disconnected against the displacement movement of the electric motor of the control unit. drive or switch its direction of rotation.

12. Device according to claim 11, characterized in that the bearing position of the pivot lever is movably mounted against a variablely adjustable tensioning force and a switch device connected to the control device is provided, dependent on the displacement movement produces a signal for the control of the electric motor.

13. Device according to claims 11 and 12, characterized in that the tension force is passed through a spring arranged in the path of travel in the bearing position.

14. Device according to claims 11 to 13, characterized in that at the beginning and at the end of the sliding movement of the sliding door from the open position to the closed position, the switching device is established by external force.

15. Device in accordance with the claims 11 or 14, characterized in that the tilting lever is constructed in such a way that it is shortened or stretched against a defined but variablely adjustable tensioning force and a switching device connected to the control apparatus is provided which depends on the variation to long it produces a signal for the control of the electric motor.

16. Device according to claims 11 and 15, characterized in that the tension force is guided by means of a spring integrated in the turning lever.