DE202008001065U1 - Drive device with dual torque utilization - Google Patents

Abstract

Drive device (20) for entry / exit devices for vehicles of public transport, with a Verrieglungsvorrichtung for locking / unlocking the entry / exit devices and a drive unit (22), the
In a rotary column (24) which rotates about an axis of rotation ZZ during opening and closing operations and which opens and closes the entry / exit device, and drives it,
- Is held on the vehicle via a holding member (40), wherein the holding member (40) acts as an abutment for a torque of the drive unit (22),
An actuating element (74) which is connected to the drive unit (22) and to the locking device,
wherein during the opening process of the entry / exit device when generating a torque by the drive unit first the actuating element (74) for actuating the locking device moves and only then the torque of the drive unit (22) is transmitted to the entry / exit device.

Description

The The invention relates to a drive device for entry / exit devices for public transport vehicles.

Such entry / exit devices are known in particular for passenger doors, but also for entry ramps, sliding steps and the like on vehicles of public passenger transport. Often these are arranged in the region of the door frame or door portals above a passage opening. For example, sliding doors are in the EP 10 409 79 A2 and the EP 13 146 26 A1 described. The drives shown therein are therefore particularly suitable for sliding sliding doors, which perform a pivoting and a lateral displacement during the opening and closing operation. Drive devices for pure rotary or swing doors, ie doors that do not shift sideways, are usually located above or below the doors in the area of the door portal. Also the DE 203 16 764 U1 describes the arrangement of a drive device in the upper region of the door portal. However, the arrangement of the drive over the door is disadvantageous in terms of space and space requirements.

Usually are two processes in such entry / exit devices realized separately from each other. First, the corresponding Elements of the door system extended and retracted or opened and closed, on the other hand is often in addition one Lock necessary. This is especially true for doors, opened by a drive device or drive unit and ge closed and ver of a locking device and be unlocked. The lock is for security reasons mandatory in many cases.

in principle is a locking by hand possible, for example by moving appropriate levers on vehicles of passenger transport However, the locking must usually be done automatically. Accordingly, locking devices are used, for example the turning of a lever or the snapping of snap elements over Cause and control electric motors. These locking devices are from the drive device for the opening and closing process independently. Before opening This means that a door must first be unlocked or must the door after closing accordingly be locked. This can be done by having a competent Person, such as the platoon leader, a corresponding Signal via an actuator outputs, conceivable but is also that locking and unlocking operations closing operations or automatically initiate opening operations.

Of the Structure of such entry / exit facilities is therefore accordingly complicated and expensive. The drives for the locking devices, For example, the mentioned electric motors, can be independent Failed or damaged by the drive devices become. The cost of maintaining appropriate entry / exit facilities is thus relatively high.

The The object of the present invention is a drive device for entry / exit devices for vehicles public transport, if possible is simple, can be arranged to save space and at in particular, the locking device robust and resistant is. The disadvantages of the prior art should be avoided.

• – in einer sich bei Öffnungs- und Schließvorgängen um eine Rotationsachse Z-Z drehenden Drehsäule, die die Ein-/Ausstiegseinrichtung öffnet und schließt, angeordnet ist und diese antreibt,
• – über ein Haltebauteil am Fahrzeug gehalten ist, wobei das Haltebauteil als Gegenlager für ein Drehmoment der Antriebseinheit wirkt,
• – ein Betätigungselement aufweist, das mit der Antriebseinheit und mit der Verriegelungsvorrichtung verbunden ist,

wobei beim Öffnungsvorgang der Ein-/Ausstiegseinrichtung bei Erzeugung eines Drehmomentes durch die Antriebseinheit zunächst das Betätigungselement zur Betätigung der Verriegelungsvorrichtung bewegt und erst anschließend das Drehmoment der Antriebseinheit auf die Ein-/Ausstiegseinrichtung übertragen wird.According to the invention the object is achieved by a drive device for entry / exit devices for vehicles of public transport, with a Verrieglungsvorrichtung for locking / unlocking the entry / exit devices and a drive unit, which

• In a rotary column which rotates about an axis of rotation ZZ during opening and closing operations and which opens and closes the entry / exit device, is arranged and drives it,
• Is held by a holding member on the vehicle, wherein the holding member acts as an abutment for a torque of the drive unit,
• An actuating element connected to the drive unit and to the locking device,

wherein during the opening process of the entry / exit device when generating a torque by the drive unit, first the actuating element for actuating the locking device moves and only then the torque of the drive unit is transmitted to the entry / exit device.

An essential idea of the invention is therefore to use the already existing drive device for actuating the locking device. So there are no additional motors or drive means necessary, the drive device is used without significant structural changes directly for the operation of the Verrieglungsvorrichtung. The only condition is that the generated torque of the drive unit interacts with the locking device in such a way that it initially causes an unlocking during the opening process, for example of a door, and only then does the door move. The generated torque of the drive unit is thus used, so to speak, for two tasks, one behind the other or, depending on the embodiment, also run in parallel. The decisive factor is that when the door is set in motion, it will be unlocked beforehand. In the opposite case, ie during the closing process, the door is advantageously locked by a snap or rotary latch lock.

in the Principle, two embodiments are possible, for one can the torque of the drive unit, for example via transmit an output shaft to the rotary column which causes it to rotate, but at first only the locking device is actuated and only then a transmission of torque to the opening / closing devices to be opened he follows. According to the invention, the actuating element then so with the Verriegelungsvor direction and the entry / exit device connected, that the said two-stage action can take place. To this purpose can be used according to the invention in the actuator Example be provided a slot in which a bolt with the entry / exit device is connected, is slidably mounted The actuator is also with the Locking device connected, for example via a linkage. Turns now the rotary column, will first the actuator moves and over the linkage open the locking device. Then beats the bolt of the entry / exit device on At the end of the slot, the torque of the drive unit is over the actuator is transferred to the entry / exit device and these open.

In the second embodiment, the division is done the use of torque over that torque is removed at a second location on the drive unit. According to the invention, an output shaft of the drive unit connected to the rotary column while the actuator for example, attached to a housing of the drive unit and is fixedly hinged to the locking device. The drive unit is mounted in a torque bearing that moves the drive unit within the rotary column allows without a Torque is transmitted to the rotary column. Here, too, offers storage over at least one Slot on, into which a bolt of the rotary column protrudes. The slot has a curvature corresponding to the rotational movement on. When switching on the drive unit thus initially turns the drive unit itself and takes the actuator, which is hinged to the locking device, with. The locking device is therefore actuated without the torque transmitted to the rotary column becomes. By acting in this state locked door acts the rotary column as a torque arm. Will the rotation the drive unit is blocked by the end of the slot and is The door unlocks, the torque of the drive is on taken from the drive shaft and thereby driven the rotary column.

Of the Invention is still based on the basic idea, the drive unit to be arranged directly in a rotary column, the entry / exit device, So usually a door, moved. By this arrangement the space above the door is no longer needed and can be used for other facilities who the. Essential in such an arrangement, however, is that of the drive device applied torque is opposed to an abutment. The Drive unit is therefore on a fixed component of the vehicle attached. Thus, it is possible that the output torque the drive device transmitted to the rotary column can be and this turns.

The Housing the drive unit directly in the rotary column In addition to saving space also has many advantages in terms of maintenance and installation of the entire drive device.

The Inventive storage can advantageously Also take into account that due to the length the pivot column twists and deflections during the same of the company can hardly be avoided. The movements of the rotary column come For example, by the fact that the vehicle due to Acceleration and braking and cornering compressed or twisted. On buses also leads the Tire contact with curbs or similar edges to that a vehicle deformation and thus a movement of the rotary column arises. Since the drive unit fixed to a stationary component is, can such twisting and deflections of the rotary column negatively affect the drive device. According to the invention Therefore, the drive unit via a bearing with the support member connected, that allows a tumbling of the rotary column, a Rotation about the axis of rotation Z-Z, however, prevented. Under tumbling becomes a deflection from the axis of rotation Z-Z in the X and / or Y direction Understood. This function raises a relative movement, so to speak the drive unit and the column.

advantageously, is still a movement in the Z direction, ie in the direction of Rotation axis Z-Z possible. For this purpose, a leadership wave, which connects the drive unit to the bearing, in a guide the bearing slidably mounted. The guide shaft is for transmitting the torque preferably non-circular, they may for example have a polygonal or polygonal geometry.

The Rotary column itself is rotatably mounted, preferably also in the same holding component, which also supports the drive unit. By the use of a conventional hinge bearing for storage the rotary column can turn this in the holding member and simultaneously position deviations between upper and lower bearing in the X and Y directions. The pivot point of the guide shaft and the rotary column bearing should lie on one level, So arranged approximately at the same position of the axis of rotation Z-Z be. This prevents tension and strain on the bearings and causes the movement of the drive unit and rotary column run as parallel as possible.

The movable and flexible mounting of the drive device or drive unit allows the installation of the drive device in different vehicles. It is even conceivable, the drive device in a rotary column with low inclination, for example up to 5 ° inclined position, use. Also, the movable storage helps installation tolerances balance what the installation and maintenance of the entire drive device facilitated.

When Particularly suitable bearing has proven to be a spherical plain bearing. The guide shaft is by means of balls in a ball socket guided. In the guide shaft are spherical Recesses arranged to hold the balls in position. In the Ball seat are corresponding elongated depressions provided in Z-direction, in which the balls are guided. Due to the position of the elongated guides in the Z direction the rotation is prevented by Z, but at the same time a tumbling by Z-Z or a combined rotation of X and Y allows. The ball seat can preferably be constructed in two parts.

The Guide shaft may preferably one along its longitudinal axis have running through bore, through the necessary Cables and similar connections can. Such a bore has the advantage that on the one hand the use of space is optimized, on the other hand guided in it Cables and connections are protected.

The Drive unit can be constructed and arranged differently. For example, the transmission via its output shaft as the guide shaft to be connected to the camp, is conceivable but also an arrangement in which the output shaft of the drive motor as a guide shaft is firmly connected to the camp. in the the latter case is also the case of the transmission, z. B. a planetary gear, firmly connected to the rotary column. In principle, the drive unit is in contrast to the first embodiment only turned so that the gearbox points in the direction of the ground. If the drive motor is energized, the housing rotates Drive unit, whereby the rotary column is rotated becomes. In this embodiment, an outer tube for the drive unit and the torque support omitted in the area of the warehouse.

According to the invention a non-self-locking drive unit or a non-self-locking Reduction gear be provided, so the blockade is not by the drive unit or the transmission, but by a Provide blocking device. A manual operation of the Entry / exit devices is due to the low self-locking always guaranteed in an emergency, it only has to the blocking effect of the blocking device are canceled. This leads to a high degree of security.

There a self-locking of the drive or the transmission is not given is, an additional blockade of the drive is mandatory required. This can be done by an additional braking device carried out in the non-energized state, a mechanical lock of the drive causes. This brake is electric and manual by Hand unlockable to decouple the drive and thus an electric and / or manual operation. The manual Unlocking the brake can via a known spring-applied brake with manual release, with the hand release the brake for a mechanical emergency unlocking device can be used. Such brakes are under the term "low-active brake" known. Alternatively, however, any other suitable blocking device can be used. The brake can, for example, by means of spring force on the output shaft of the output motor act and electromagnetically solvable be.

alternative is also the use of a so-called high-active brake according to the invention possible. Such a brake is also known under the term anchor brake known. This means the brake is active when energized and the door is fixed in this position. It is a prerequisite that the entrance door with an external locking device is provided to a longer parked vehicle to securely lock the entrance permanently. This can be z. B. by a remote-controlled central locking lock done.

In the case of a vehicle parked for a shorter period of time, the door can be locked by delaying the supply voltage without the external interlock. The brake will continue to be energized for this period. In an unfinished door and when switching off the power supply, the door is no longer fixed and can be manually moved by hand, but this is a mechanical emergency release z. B. via Bowden cable is no longer necessary. The emergency release takes place for Example via a NC contact in the control line for the brake. The emergency release can be reset either centrally or remotely with simple means, the decentralized reset of the emergency release, for example via an external relay connection.

According to the invention on a brake as a blocking device even completely be dispensed with when the drive motor short-circuited can. About the occurring short-circuit torque of the drive motor can keep the door locked and moving the door Door to be prevented. This function is always guaranteed even if the vehicle is stationary and not in operation. Will the Emergency release actuated, is preferably over a mechanical switch the connection between the two contacts interrupted, the short-circuit torque is canceled and The door can easily be opened by hand without any problems become. The self-locking of the door is thus through easy disconnection of the plus or minus line of the motor canceled. The lock is always present when the engine is de-energized, that is, a power failure has no changing Influence on this. In case of power failure or failed electronics The emergency release can always be done by pressing the short-circuit switch respectively. It is possible the entry / exit device, in particular a door, after interruption of the short circuit by switching back to lock the switch again.

Of the Short circuit switch works according to the invention preferably directly without auxiliary power and thus also when the vehicle is stopped or at power interruption.

The Advantages of using such a short circuit switch are on the one hand in the reduction of the necessary components for the emergency release, on the other hand, the short-circuit switch on be placed in any ergonomically favorable position, the laying of usual Bowden cables or Pneumatic lines omitted.

According to the invention also a combination of a lock based on a short circuit and the use of a brake or mechanical locking possible. This can be the case in particular if the short-circuit torque is not sufficient to lock the door securely.

Of the switchable short circuit can advantageously by special windings the motor windings are guaranteed exclusively are provided for the production of the short circuit. By special windings can also be an increased braking effect or Verrieglungswirkung be achieved.

Farther For example, the output element of the reduction gear may be connected to a lift rotary unit be, a per se known component, especially in outdoor swing doors is used. About the door lift takes place a positive connection of the door leaf with the door portal via locking wedges.

Around the exact position of the entry / exit device, preferably a door to be able to determine, it makes sense to record the turning path via a corresponding encoder. Such an encoder, for example, an absolute encoder, determined the position of the door even in the de-energized state of the vehicle and recognizes the position when the power is switched back on even if the door is in between was moved manually. Absolute encoders have proven to be practicable proved in which over sliding contacts above the rotary column appropriate values are tapped. According to the invention but also a non-contact, electronic absolute encoder be used. To recognize the position of the door, this is attached to the output shaft of the gearbox bes and consists for example, a magnet connected to the rotating unit connected, and an electronic chip, to which the rotating Magnet is aligned exactly axially centric.

In a particularly advantageous embodiment is at the engine another gear with the same reduction as the output gearbox attached. To this transmission can the magnet and a housing for the recording the electronic chip can be easily grown axially-centric. Between the drive motor and the transmission may continue the brake be arranged. Since transmitted via the additional gear no torques This may be cost effective Be executed plastic gear. About the investigation the position of the second reduction gear can thus indirectly determines the position or the rotational path of the entry / exit device become.

The Detection of the rotary path via the output shaft has the Advantage that any material breaks within the drive detected and reported in an unwanted door opening can be.

Instead of a non-self-locking drive unit is self-evident also a self-locking design can be used. The total reduction gearbox For example, it can be divided into two individual transmissions, the are coupled together by a disengageable coupling. The controllable clutch can be as under spring force Coupling be formed, which is connected to a manually operable Emergency release device is connected.

In a particularly advantageous embodiment is the first Reduction gear with the drive motor and the first coupling half in common axially by spring force of a compression spring with the second coupling half and the second reduction gear connected. In this version the construction on the clutch is extremely simple and with a clear fewer components can be realized. The outside diameter remains also significantly smaller, because the connection point of the Bowden cable central is provided in the housing.

in the Below, the invention with reference to the accompanying drawings explained in more detail:

In show the drawings:

1 : Schematic representation of a drive device,

2 FIG. 2 shows a schematic axial section of an exemplary embodiment of an input / output device drive unit; FIG.

3 FIG. 2 shows a sectional view of a second embodiment of the mounting of the drive device, FIG.

4 : Sectional view of a bearing of the drive device,

5 a cross-section through the bearing showing the arrangement of balls.

6 : an embodiment according to the invention in axial section with actuating element,

7 : Sectional view of an inventive mounting of the drive unit for entry / exit devices with torque distribution,

1 shows a simplified schematic representation of a drive device 20 , A drive unit 22 is in a turning column 24 accommodated. The turning column 24 has retaining arms 26 for fixing a door, not shown, and is via a floor storage 28 rotatably mounted on a ground, usually a vehicle floor. Furthermore, a pivot bearing 38 shown, over which the turning column 24 rotatable about a steering axis ZZ in a warehouse 34 is stored.

An output shaft 54 the drive unit 22 is about a rotary column bearing 30 rotatably with the rotary column 24 connected so that about the rotary column bearing 30 a rotary movement of the rotary column 24 can be effected. From the drive unit 22 extends a guide shaft 32 in the warehouse 34 into and is via a drive unit bearing 36 rotatably connected to this. The drive unit bearing 36 For example, it can be designed as a ball-and-socket joint bearing and serves to receive the torque of the drive unit 22 , which in turn firmly with a holding member 40 connected is.

2 shows a constructed as a compact drive and in the rotary column 24 arranged drive unit 22 For example, for a passenger door, in which within a slim, tubular housing 42 in the axial direction one behind the other an electric drive motor 44 and a reduction gear 46 , shown as a three-part planetary gear, are arranged. To the drive motor 44 closes a brake 48 also inside the case 42 is housed and can be designed as a spring-engaging and electromagnetically and mechanically releasable "low-active brake" or as a "high-active brake". The reduction gear 46 is not self-locking.

An unrecognizable output element of the drive motor 44 is with a likewise not recognizable input element of the reduction gear 46 connected, whose output shaft 54 over the rotary column bearing 30 with the rotary column 24 connected is. The turning column 24 tapers below the drive unit 22 ,

The leadership wave 32 extends from the housing 42 in the warehouse 34 into it, the bearing with the holding member 40 of the vehicle is connected.

That of the drive motor 44 Torque generated is via the reduction gear 46 on the transmission output shaft 54 transfer. In an emergency, only the brake 48 be resolved, after which the manual operation of the passenger door due to the lack of self-locking of the reduction gear 46 is readily possible.

Instead of or in addition to the brake 48 can also be provided for locking a short-circuit device, the motor windings of the drive motor 44 short-circuited for locking.

3 , shows a second embodiment of the drive device 20 , In this case, the transmission output shaft acts 54 as a leadership wave 32 juts into the shelf 34 into it and is rotatably mounted there. The housing of the reduction gear 46 is non-rotatable with the rotary column 24 connected. Will the drive motor 44 energized, also rotates the housing of the reduction gear 46 the drive unit 22 , causing the rotary column 24 is set in rotation. In this embodiment, the housing 42 for the drive unit and the torque support (guide 66 ) in the area of the camp 32 omitted. To the drive motor 44 is advantageously a second reduction gear 72 with the same chen reduction as the reduction gear 46 appropriate. At this second reduction gear 72 can as a donor a magnet and a housing 73 be easily mounted axially-centric for receiving the electronic chip. Because of the second reduction gear 72 No torques need to be transmitted, this can be designed as a low-cost plastic transmission.

All electrical and mechanical connection elements, eg. B. if necessary. A Bowden cable for manual unlocking of the brake 48 , are inside the case 22 arranged. Also, when using the drive device 20 be provided in a hub-rotation unit, a sensor for Huberfassung.

4 illustrates the storage of the drive device according to the invention 20 , Shown is the storage area according to the embodiment of 2 , The holding component 40 serves as a support for the torque of the drive unit 22 , The warehouse 34 is designed as a ball and socket joint bearing and the guide shaft 32 in a two-part ball seat 58 by means of balls 60 guided. The leadership wave 32 has spherical shots for the balls 60 holding them in position. In the two-piece ball seat 58 are corresponding elongated depressions 62 introduced, which run in the Z direction. The leadership wave 32 is through these guides able to perform wobbling movements. The wells 62 allow a wobble of the guide shaft 32 in the Z direction, the spherical depressions in the guide shaft 32 allow torque transmission about the longitudinal axis ZZ.

The bearing of the rotary column 24 via the joint bearing 64 in which the turning column 24 can rotate about the longitudinal axis ZZ and compensate for wobbling movements. So that the tumbling motion of the rotary column 24 and the Antriebsvor direction 20 is synchronous, is the ball seat 58 in the Z direction in the center of the spherical bearing 64 arranged. The turning column 24 and the leadership wave 32 So they have, so to speak, a common sway point 70 on, which is arranged on the longitudinal axis ZZ. To shift the drive unit 22 in z-direction during tumbling is the guide shaft 32 provided with a polygonal geometry in a guide 66 slidably slide in the Z direction and the torque of the drive unit 22 transfers.

5 shows a cross section through the bearing 34 and clarifies the arrangement of the balls 60 , They are screws 68 recognizable, which are the two ball pictures 58 connect with each other.

6 illustrates a first embodiment of the invention the drive device 20 , On the drive unit 22 is an actuator 74 shown, in this embodiment, on a housing 42 the drive unit is attached. Alternatively, an attachment directly to the drive unit 22 possible. The actuator 74 is connected at its free end to a locking device, not shown, for locking / unlocking the entry / exit devices. By a rotary movement of the drive unit 22 around a rotational axis ZZ moves the actuator 74 and actuates the locking device. The warehouse 34 that the leadership wave 32 receives, in turn, according to the invention via another rotary bearing 76 with the holding member 40 connected. The rotary bearing 76 allows the distribution of torque decrease on the one hand for actuation of the locking device, on the other hand for the rotation of the rotary column 24 ,

7 shows the rotation bearing 76 in cross section. It is recognizable that one is from the camp 34 from extending torque transmitting member 78 in the holding member 40 extends there and there is sufficient space for rotation by a certain degree of rotation available. In the exemplary embodiment shown, the torque transmission component 78 three long holes 80 on, in which fixed bolts 82 extend into it. The storage between the bolts 82 and the oblong holes 80 can be done for example by sliding or rolling bearings. When switching on the drive unit 22 Thus, first turns the drive unit 22 because in the case of a locked door, the closure or Verriege treatment device represents the lower resistance. Because the turning column 24 due to the locked door on the output shaft 54 is not movable, first the drive unit 22 and thus the actuating element 74 moves, which unlocks the door. Come the bolts 82 at the ends of the slots 80 to the stop, the rotational movement of the drive unit 24 blocked and the torque then the further rotating output shaft 54 on the turning column 24 and thus the holding arms 26 transfer. There are three slots 80 shown, but also conceivable is a design with only one or more than three slots 80 ,

The Invention is not limited to the described embodiments but also includes similar ones Embodiments. The description of the figures serves only the understanding of the invention.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - EP 1040979 A2 [0002]
• - EP 1314626 A1 [0002]
• - DE 20316764 U1 [0002]

Claims (10)

Drive device ( 20 ) for entry / exit devices for public transport vehicles, with a locking device for locking / unlocking the entry / exit devices and a drive unit ( 22 ), which - in a rotating during opening and closing operations about a rotation axis ZZ rotary column ( 24 ), which opens and closes the entry / exit device, is arranged and drives it, via a holding component ( 40 ) is held on the vehicle, wherein the holding member ( 40 ) as an abutment for a torque of the drive unit ( 22 ) acts, - an actuating element ( 74 ) connected to the drive unit ( 22 ) and is connected to the locking device, wherein during the opening process of the entry / exit device when generating a torque by the drive unit, first the actuating element ( 74 ) is moved to actuate the locking device and only then the torque of the drive unit ( 22 ) is transmitted to the entry / exit device. Drive device ( 20 ) according to claim 1, characterized in that - the actuating element ( 74 ) rotatably with a housing ( 42 ) of the drive unit ( 22 ), - that the entry / exit device with the drive unit ( 22 ) via an output shaft ( 54 ) is transmitted via which torque is transmitted to the movement of the entry / exit device, - a rotary bearing ( 76 ) is provided that in both directions of rotation of the housing ( 42 ) of the drive unit ( 22 ) by a certain number of degrees, wherein during the opening process of the entry / exit device, first the drive unit ( 22 ) with the actuating element ( 74 ), and the locking device is actuated, then the rotational movement of the housing ( 42 ) blocks the drive unit and the torque of the drive unit ( 22 ) via the output shaft ( 54 ) is transmitted to the entry / exit device. Drive device ( 20 ) according to claim 2, characterized in that the rotary bearing ( 76 ) a torque transmission component ( 78 ), that with the drive unit ( 22 ) and at least one slot ( 80 ) into which a stationary bolt ( 82 ) extends into it. Drive device ( 20 ) according to one of claims 1 to 3, characterized in that the drive unit ( 22 ) a second reduction gear ( 72 ) connects that with a donor ( 73 ) is connected to determine the position of the entry / exit device. Drive device ( 20 ) according to one of claims 1 to 4, characterized in that between the drive unit ( 22 ) and the holding component ( 40 ) a bearing is provided, which is a tumbling of the rotary column ( 24 ) and prevents rotation about the axis of rotation ZZ-. Drive device ( 20 ) according to claim 5, characterized in that a guide shaft ( 32 ) from the drive unit ( 22 ) in a warehouse ( 34 ) and recordings for receiving balls ( 60 ) in wells ( 62 ) of the ball seat ( 58 ) of the warehouse ( 34 ), wherein the depressions ( 62 ) in the longitudinal direction ZZ a movement of the balls ( 60 ), so that the guide shaft ( 32 ) over the balls ( 60 ) movable in the Z direction, but non-rotatably about the longitudinal axis ZZ in the ball seat ( 58 ) is stored. Drive device ( 20 ) according to claim 5 or claim 6, characterized in that the rotary column ( 24 ) in a pivot bearing ( 64 ) is mounted, the ball receiving ( 58 ), wherein the guide shaft ( 32 ) and the rotary column ( 24 ) around a common tumbling point ( 70 ), which is arranged on the longitudinal axis ZZ. Drive device ( 20 ) according to claim 7, characterized in that the guide shaft ( 32 ) rotatably with the drive unit ( 22 ) connected is. Drive device ( 20 ) according to one of claims 5 to 8, characterized in that the guide shaft ( 32 ) of the output shaft of a drive motor ( 44 ) corresponds. Drive device ( 20 ) according to one of claims 5 to 4, characterized in that the guide shaft ( 32 ) a transmission output shaft ( 54 ) corresponds.