DE102018131933A1 - Door drive device - Google Patents

Abstract

A door drive device (2) for adjusting a vehicle door (11) relative to a vehicle body (10) comprises an adjustment part (21) for causing an adjustment of the vehicle door (11), an electromotive drive unit (22) and one that can be operatively connected to the drive unit (22) Output unit (26) which is coupled to the adjusting part (21) for introducing an adjusting force into the adjusting part (21). It is provided that the output unit (26) has a spindle (260) which can be rotated about an axis of rotation and a spindle nut (261) which is in threaded engagement with the spindle (260) and which is coupled to the adjusting part (21), whereby by rotating the spindle ( 260) the spindle nut (261) is axially adjustable along the spindle (260) and the adjusting part (21) is thereby movable for adjusting the vehicle door (11). In this way, a door drive device is made available which enables a simple construction, possibly with flexible scalability and adaptation to use the door drive device on different vehicle doors.

Description

The invention relates to a door drive device for adjusting a vehicle door relative to a vehicle body according to the preamble of claim 1.

Such a door drive device comprises an adjustment part for effecting an adjustment of the vehicle door, an electromotive drive unit and an output unit which can be connected to the drive unit and which is coupled to the adjustment part for introducing an adjustment force into the adjustment part.

One in the DE 10 2015 215 627 A1 The door drive device described has, for example, an adjusting part in the manner of a tether, which is connected in an articulated manner to a vehicle body and can be adjusted via a drive device on the side of the vehicle door in order in this way to move the vehicle door relative to the vehicle body. The drive device has a cable drum that can be rotated and is connected via a transmission element in the form of a traction cable to the adjustment part in the form of the tether such that the adjustment part is moved to the cable drum by rotating the cable drum and the vehicle door can thereby be adjusted.

The object of the present invention is to provide a door drive device which enables a simple construction, possibly with flexible scalability and adaptation to use the door drive device on different vehicle doors.

This object is achieved by a door drive device with the features of claim 1.

Accordingly, the output unit has a spindle rotatable about an axis of rotation and a spindle nut which is in threaded engagement with the spindle and is coupled to the adjusting part. By turning the spindle, the spindle nut can be adjusted axially along the spindle, thereby moving the adjustment part to adjust the vehicle door.

In the door drive device, an output unit in the manner of a spindle drive is used, via which adjustment forces can be introduced into the adjustment part for adjusting the vehicle door. Such a spindle drive can be constructed simply with a few components and enables reliable and resilient power transmission.

Such a spindle drive also enables a modular design, in which the drive unit, the output unit and intermediate further units can optionally be configured in a modular manner and connected to one another in a modular manner, where appropriate individual units can be scaled in order to dimension the door drive device for a power to be made available .

The drive unit comprises a rotatable spindle which is in threaded engagement with a spindle nut. By turning the spindle, the spindle nut can be adjusted axially along the spindle, so that the adjustment part coupled to the spindle nut is moved in this way and an adjustment force is thereby caused between the vehicle door and the vehicle body. The door drive device can be arranged on the side of the vehicle door, for example. Because the adjustment part is coupled on the one hand to the output unit of the door drive device and on the other hand to the vehicle body, an adjusting force can be brought about between the vehicle door and the vehicle body in order to move the vehicle door between a closed and an open position.

In one configuration, the door drive device has a transmission unit for transmitting a rotary movement from the drive unit to the output unit. The transmission unit can set a gear ratio or a reduction ratio between a rotary movement of the drive unit and a rotary movement of the spindle, the transmission ratio being adjustable.

In one configuration, the drive unit has a motor shaft that can be rotated about a first longitudinal axis. The axis of rotation of the spindle is directed along a second longitudinal axis which extends parallel to the first longitudinal axis and is spaced apart transversely to the first longitudinal axis. The first longitudinal axis, about which the motor shaft of the drive unit can be rotated, and the second longitudinal axis, about which the spindle can be rotated, are thus not collinearly directed to one another, but offset parallel to one another. A rotary movement of the motor shaft of the drive unit about the first longitudinal axis is in this case transmitted via the transmission unit into a rotary movement of the spindle about the second longitudinal axis, so that the spindle can be driven into a rotary movement about the second longitudinal axis driven by the drive unit.

In one configuration, the transmission unit has an input element rotatable about the first longitudinal axis and an output element rotatable about the second longitudinal axis. The transmission unit is designed to transmit a rotational movement of the input element about the first longitudinal axis into a rotational movement of the output element about the second longitudinal axis. The The input element is assigned to the drive unit and can be driven via the drive unit. In contrast, the output element is assigned to the spindle and transmits a rotary movement to the spindle, so that a rotary movement can be transmitted from the drive unit to the spindle via the transmission unit.

The input element and the output element can be designed differently depending on the design of the transmission unit.

In one embodiment, for example, the transmission unit can have a spur gear. In this case, the input element and the output element are each formed, for example, as a spur gear and are coupled to one another via a transmission element in the form of a further spur gear arranged between the input-side spur gear and the output-side spur gear.

In another embodiment, the transmission unit has a belt transmission. In this case, the input element and the output element are each designed as gear wheels, which are operatively connected to one another via a transmission element in the form of a belt such that a rotary movement at the input element is transmitted into a rotary movement at the output element.

In yet another embodiment, the transmission unit has a continuously variable transmission. Such a continuously variable transmission enables a variable setting of a transmission ratio, so that a translation / reduction which is provided by the transmission unit can be variably and continuously set.

Such a continuously variable transmission has, for example, an input element with a first transmission element, an output element with a second transmission element and a transmission element coupling the input element to the output element. The first gear element and / or the second gear element can be infinitely adjusted to set a transmission ratio, so that a transmission ratio made available via the transmission unit can be variably adjusted.

Such a continuously variable transmission can be controlled, for example, by an electronic control device. The transmission ratio can be set as a function of a speed to be provided on the spindle or a torque to be provided.

The first gear element and / or the second gear element can be adjusted, for example, via an actuator which can be adjustable electrically, for example by an electric motor. The adjustment of the first gear element and / or the second gear element can, however, also take place via a mechanical, manually adjustable adjusting device.

Gear elements of a continuously variable transmission can be designed, for example, as friction wheels, which are axially adjustable along the respectively assigned axis of rotation and have a conical shape. The gear elements can be coupled, for example, via a belt, the transmission ratio being able to be adjusted by axially adjusting the gear elements.

In one configuration, the door drive device additionally has a clutch unit which can be switched between a clutch state and a free-wheel state. In the coupling state, the coupling unit couples the drive unit to the output unit, so that a rotary movement can be transmitted from the drive unit to the output unit, that is to say that adjustment forces can be introduced into the adjustment part via the spindle and the spindle nut. In the freewheeling state, on the other hand, a flow of force between the drive unit and the output unit is eliminated, so that the output unit can be adjusted independently of the drive unit. In this freewheeling state, manual adjustment of the vehicle door may be possible, for example.

In addition, the clutch unit can also be switched into a braking state. In this braking state, the clutch unit provides a braking effect on the output unit and thus on the vehicle door. The clutch unit can be switched into this braking state, for example in order to brake manual adjustment of the vehicle door or to determine the vehicle door in an assumed position (if the vehicle door can be released from the determined position by overcoming a holding torque provided by the clutch unit).

Such a clutch unit can be designed, for example, in the manner of a drum brake, as is shown, for example, in FIG DE 10 2015 215 627 A1 is described. Such a clutch unit can also be implemented, for example, by a multi-plate clutch, a magnetic clutch or a magnetorheological clutch.

In one embodiment, the drive unit is part of a first assembly and the output unit is part of a second assembly, each of which is modular and can be modularly connected to one another. It can be provided here that the first assembly and the second assembly can be arranged in different positions relative to one another and can be operatively connected to one another, so that the design of the door drive device can be variably adapted, for example, depending on the available installation space.

In particular, the first assembly can have a first housing assembly and the second assembly can have a second housing assembly. For example, the drive unit, a gear unit, a clutch unit, and possibly also the transmission unit can be at least partially enclosed in the first housing assembly. In contrast, the second housing assembly can, for example, enclose the output unit. It can be provided here that the first housing assembly and the second housing assembly can be fastened to one another in different positions. The position of the modules relative to one another can thus be variably adapted to one another by means of flexible fastening options for the housing modules.

The housing assemblies can be fastened to one another in different positions, for example, which are rotated relative to one another about the axis of rotation of the spindle. In these different positions, the housing assemblies can each be firmly connected to one another, with the drive unit of the first assembly and the output unit of the second assembly being operatively connected to transmit actuating forces from the drive unit to the output unit.

The first housing assembly can additionally or alternatively also be fastened to the second housing assembly in positions reversed along the axis of rotation. This is to be understood to mean that the first housing assembly can be connected to the second housing assembly in positions which are rotated by 180 ° with respect to one another about a transverse axis extending transversely to the axis of rotation, thereby establishing an operative connection between the drive unit of the first assembly and the output unit of the second Module.

For this purpose, the first housing assembly, for example on a housing section that surrounds the transmission unit, can have fastening points on sides facing away from one another along the axis of rotation of the spindle, each of which enables the second housing assembly to be fastened. The second housing assembly can thus - optionally - be connected to the first side or to the second side, so that the second housing assembly can extend along different directions from the first housing assembly.

Units of the door drive device, in particular the drive unit, a transmission unit, the clutch unit, the transmission unit and the output unit, can each be designed in a modular manner and can be scalable, for example, in order to provide the door drive device with a variably scalable power for providing a scalable torque. It may also be conceivable to dispense with individual functions, for example the coupling unit or even the drive unit, depending on the configuration of the door drive device, so that a (purely) manual door drive, which acts as a locking device, can be made available.

The object is also achieved by a door drive device for adjusting a vehicle door relative to a vehicle body, with an adjustment part for effecting an adjustment of the vehicle door, an electromotive drive unit and an output unit operably connectable to the drive unit, which is coupled to the adjustment part for introducing an adjustment force into the adjustment part is. In addition, a transmission unit is provided for transmitting a rotary movement from the drive unit to the output unit, the transmission unit having a continuously variable transmission.

Such a continuously variable transmission enables a variable setting of a transmission ratio, so that a translation / reduction which is provided by the transmission unit can be variably and continuously set.

Such a continuously variable transmission has, for example, an input element with a first transmission element, an output element with a second transmission element and a transmission element coupling the input element to the output element. The first gear element and / or the second gear element can be infinitely adjusted to set a transmission ratio, so that a transmission ratio made available via the transmission unit can be variably adjusted.

Such a continuously variable transmission can be controlled, for example, by an electronic control device. The transmission ratio can be set as a function of a speed to be provided on the spindle or a torque to be provided.

Adjusting the first one The transmission element and / or the second transmission element can take place, for example, via an actuator which can be adjustable electrically, for example by an electric motor. The adjustment of the first gear element and / or the second gear element can, however, also take place via a mechanical, manually adjustable adjusting device.

Gear elements of a continuously variable transmission can be designed, for example, as friction wheels, which are axially adjustable along the respectively assigned axis of rotation and have a conical shape. The gear elements can be coupled, for example, via a belt, the transmission ratio being able to be adjusted by axially adjusting the gear elements.

The object is also achieved by a modular system for producing a door drive device for adjusting a vehicle door relative to a vehicle body. The modular system comprises an adjustment part for effecting an adjustment of the vehicle door, an electromotive drive unit and an output unit which can be operatively connected to the drive unit and which is coupled to the adjustment part for introducing an adjustment force into the adjustment part. The modular system also includes a first transmission unit that has a spur gear, a second transmission unit that has a belt transmission, and a third transmission unit that has a continuously variable transmission. The door drive device can be produced with the first transmission unit, the second transmission unit or the third transmission unit to transmit a rotary movement from the drive unit to the driven unit.

Using the modular system, a door drive device can be manufactured in a variable manner using modular units. In this case, the drive unit, the output unit and intermediate units such as a gear unit, a clutch unit and the transmission unit can be modular and can be flexibly combined with one another.

In particular, the modular system enables different transmission units to be used to manufacture the door drive device. A first transmission unit is designed as a spur gear, a second transmission unit as a belt transmission and a third transmission unit as a continuously variable transmission. One of these transmission units can be selected in order to manufacture the door drive device, so that the door drive device can, for example, optionally be designed with a transmission unit that does not allow variable adjustment of the transmission ratio or a transmission unit that enables variable, stepless adjustment of the transmission field.

Within the framework of the modular system, for example, differently dimensioned drive units, gear units and clutch units can be provided, so that different units can be selected and combined with one another depending on, for example, a power to be made available. Such a modular system can also make it possible, in the sense of different configurations, to design the door drive device as an electrical device for electromotive adjustment of the vehicle door or as a manually operated device - without using an electromotive drive unit - for ascertaining and manually adjusting the vehicle door. In the case of a design as a manual device, the door drive can, for example, provide a locking function for locking the vehicle door in different (discrete or continuously adjustable) locking positions and also a damping function by braking a manual adjustment movement.

A door drive device of the type described can be used as a door drive on a vehicle side door or also on a tailgate or another vehicle opening.

• 1 eine schematische Ansicht einer Fahrzeugtür an einer Fahrzeugkarosserie, mit einem gelenkig an der Fahrzeugkarosserie angeordneten, bei einem Verschwenken der Fahrzeugtür relativ zu der Fahrzeugtür bewegten Verstellteil in Form eines Fangbands;
• 2 eine Ansicht eines Ausführungsbeispiels einer Türantriebsvorrichtung;
• 3 eine andere Ansicht der Türantriebsvorrichtung;
• 4 eine Ansicht der Türantriebsvorrichtung, ohne ein eine Abtriebseinheit in Form eines Spindelgetriebes einfassendes Gehäuseteil;
• 5 eine andere Ansicht der Anordnung gemäß 4;
• 6 eine Ansicht der unterschiedlichen Einheiten der Türantriebsvorrichtung;
• 7 eine andere Ansicht der unterschiedlichen Einheiten der Türantriebsvorrichtung;
• 8 eine Ansicht der Türantriebsvorrichtung, mit einer Übertragungseinheit nach Art eines Stirnradgetriebes;
• 9 eine Ansicht der Türantriebsvorrichtung, mit einer Übertragungseinheit nach Art eines Riemengetriebes;
• 10 eine Ansicht der Türantriebsvorrichtung mit einer Übertragungseinheit nach Art eines stufenlosen Getriebes;
• 11 A-C Ansichten eines stufenlosen Getriebes bei unterschiedlichen Übertragungsverhältnissen;
• 12A-C andere Ansichten des stufenlosen Getriebes bei den unterschiedlichen Übertragungsverhältnissen;
• 13-C Seitenansichten des stufenlosen Getriebes bei den unterschiedlichen Übertragungsverhältnissen;
• 14 eine Ansicht der Türantriebsvorrichtung in einer ersten Stellung einer die Antriebseinheit umfassenden ersten Baugruppe und einer die Abtriebseinheit umfassenden zweiten Baugruppe;
• 15 eine Ansicht der Türantriebsvorrichtung in einer anderen Stellung der zweiten Baugruppe;
• 16 eine Ansicht der Türantriebsvorrichtung in anderer Stellung der Baugruppen zueinander;
• 17 eine Ansicht der Türantriebsvorrichtung in wiederum anderer Stellung der Baugruppen zueinander;
• 18 eine Ansicht der Türantriebsvorrichtung in wiederum anderer Stellung der Baugruppen zueinander;
• 19 eine Ansicht der Türantriebsvorrichtung in wiederum anderer Stellung der Baugruppen zueinander;
• 20 eine Ansicht der Türantriebsvorrichtung in wiederum anderer Stellung der Baugruppen zueinander;
• 21 eine Ansicht der Türantriebsvorrichtung in wiederum anderer Stellung der Baugruppen zueinander; und
• 22 eine Ansicht der Türantriebsvorrichtung in wiederum anderer Stellung der Baugruppen zueinander.

The idea on which the invention is based will be explained in more detail below with reference to the exemplary embodiments illustrated in the figures. Show it:

• 1 a schematic view of a vehicle door on a vehicle body, with an articulated on the vehicle body, when pivoting the vehicle door relative to the vehicle door moving adjusting part in the form of a tether;
• 2nd a view of an embodiment of a door drive device;
• 3rd another view of the door drive device;
• 4th a view of the door drive device, without a housing part enclosing an output unit in the form of a spindle gear;
• 5 another view of the arrangement according 4th ;
• 6 a view of the different units of the door drive device;
• 7 another view of the different units of the door drive device;
• 8th a view of the door drive device, with a transmission unit in the manner of a spur gear;
• 9 a view of the door drive device, with a transmission unit in the manner of a belt transmission;
• 10th a view of the door drive device with a transmission unit in the manner of a continuously variable transmission;
• 11 AC Views of a continuously variable transmission with different transmission ratios;
• 12A-C different views of the continuously variable transmission with the different transmission ratios;
• 13-C Side views of the continuously variable transmission with the different transmission ratios;
• 14 a view of the door drive device in a first position of a first assembly comprising the drive unit and a second assembly comprising the output unit;
• 15 a view of the door drive device in another position of the second assembly;
• 16 a view of the door drive device in a different position of the modules to each other;
• 17th a view of the door drive device to each other in another position of the modules;
• 18th a view of the door drive device to each other in another position of the modules;
• 19th a view of the door drive device to each other in another position of the modules;
• 20th a view of the door drive device to each other in another position of the modules;
• 21st a view of the door drive device to each other in another position of the modules; and
• 22 a view of the door drive device to each other in a different position of the modules.

1 shows a schematic view of a vehicle 1 with a vehicle body 10th and one around a door hinge 111 articulated to the vehicle body 10th arranged vehicle door 11 running along an opening direction O relative to the vehicle body 10th can be pivoted to open or close a door opening.

Between the vehicle body 10th and the vehicle door 11 acts a door drive device 2nd that an adjustment part 21st has in the form of a tether and for locking and / or adjusting the vehicle door 11 relative to the vehicle body 10th serves. The adjustment part 21st in the form of the tether is around a joint 20th on the vehicle body 10th , for example on the A-pillar of the vehicle 1 , articulated and moves when the vehicle door is pivoted 11 relative to the vehicle door 11 . The adjustment part 21st protrudes with one end 211 into a door interior 110 the vehicle door 11 and moves when the vehicle door is adjusted 11 in this door interior 110 .

2nd to 7 show different views of an embodiment of a door drive device 2nd who have a drive unit 22 in the form of an electric motor for driving an adjustment movement of the vehicle door 11 and an output unit 26 in the form of a spindle drive for transmitting an adjustment force to the adjustment part 21st having. The adjustment part 21st is with one end 210 with the vehicle body 10th articulated. The door operator 2nd is on the vehicle door 11 arranged and for example via attachment points 273 on a housing part 272 of a housing 27th to a frame structure of the vehicle door 11 fixed.

The output unit 26 is formed in the illustrated embodiment as a spindle drive, as is particularly the case 4th and 5 can be seen. The spindle drive has a spindle 260 on the circumferential outer surface of which a thread is formed, over which a spindle nut 261 with the spindle 260 is in thread engagement. The spindle nut 261 is on opposite sides via longitudinal guides 262 in the housing part enclosing the spindle drive 272 (see for example 6 and 7 ) led and stands with management bridges 277 (please refer 7 ) inside the housing part 272 slidingly engaged.

The spindle 260 is about along a longitudinal axis L2 extended axis of rotation rotatable. By turning the spindle 260 can - due to the thread engagement - the spindle nut 261 longitudinally along the longitudinal axis L2 to the spindle 260 be moved. Because the adjustment part 21st about being from the end 210 remote end 211 with the spindle nut 261 can be coupled by adjusting the spindle nut 261 the adjustment part 21st moved longitudinally and thus the vehicle door 11 relative to the vehicle body 10th be adjusted.

In the exemplary embodiment shown, different units are provided for a (switchable) operative connection between the drive unit 22 and the output unit 26 to manufacture.

The drive unit 22 in the form of the electric motor has a motor shaft 220 on that around a along a longitudinal axis L1 directional axis of rotation is rotatable. The longitudinal axis L1 is parallel to Longitudinal axis L2 around which the spindle 260 is rotatable, directed, but transversely along a transverse axis Q to the longitudinal axis L2 offset like this for example 4th and 5 can be seen.

About the motor shaft 220 the drive unit stands 22 with a gear unit 23 in operative connection, which can be realized, for example, by a planetary gear, cycloid gear or harmonic drive gear and by means of a rotary movement of the motor shaft 220 is translated into a rotary motion of a shaft 230 .

To the gear unit 23 closes a clutch unit 24th on, which can be designed, for example, in the manner of a drum brake, as a multi-plate clutch, as a magnetic clutch or as a magnetorheological clutch and serves to switch between different states in order to establish an operative connection between the drive unit 22 and the output unit 26 produce or cancel or a movement on the output unit 26 to break.

So the coupling unit 24th be switched into a clutch state in which the drive unit 22 via the coupling unit 24th with the output unit 26 is operatively connected and a rotary movement of the drive unit 22 thus on the output unit 26 can be transferred. In this coupling state, the spindle can 260 electromotive via the drive unit 22 are driven.

The clutch unit 24th can be switched to a freewheeling state in which a power flow between the drive unit 22 and the output unit 26 is interrupted and the output unit 26 independent of the drive unit 22 can be adjusted. The clutch unit can be in this freewheeling state 24th for example, be switched when manually adjusting the vehicle door 11 should be made possible.

In addition, the clutch unit 24th can optionally be switched to a braking state in which there is movement on the output unit 26 is braked, for example to control a manual adjustment movement or the vehicle door 11 in a position just occupied.

To the clutch unit 24th closes a transmission unit 25th which serves a rotary movement on the first longitudinal axis L1 in a rotating movement of the spindle 260 around the second longitudinal axis L2 transferred to. Via the transmission unit 25th torque is thus from the clutch unit 24th along the transverse axis Q transferred and into the spindle 260 initiated so that the spindle 260 for adjusting the spindle nut 261 and the adjustment part above 21st can be driven.

The gear unit 23 and the clutch unit 24th are in a housing part 270 edged in the form of a cylindrical housing tube to which a housing section 274 connects, which together with a housing part 271 the transmission unit 25th borders. That of the output unit 26 assigned housing part 272 can with the housing section 274 (or the housing part 271 ) are connected to the door drive device in this way 2nd to complete.

The transmission unit 25th can be realized in different ways in the illustrated embodiment, with different transmission units 25th can be selected in the manner of a modular system to the door drive device 1 to assemble like this in 6 and 7 and also in 8th to 10th is shown.

In a first embodiment, the transmission unit 25th with a spur gear 3rd trained that as an input element 30th a first spur gear, as an output element 32 a second spur gear and as between the spur gears 30th , 32 arranged transmission element 31 has another spur gear. The input element 30th is about the first longitudinal axis L1 rotatable and stands with the coupling unit 24th in operative connection. The output element 32 is in contrast about the second longitudinal axis L2 rotatable and is with the spindle 260 coupled. The transmission element 31 combs with the input element 30th and the output element 32 and thus transmits a rotational movement of the input element 30th in a rotational movement of the output element 32 with a transmission ratio determined by the diameter of the individual spur gears.

In another, second embodiment, the transmission unit 25th through a belt transmission 4th realized that as an input element 40 a first friction wheel (or gear) and as an output element 42 has a second friction wheel (or gear), which is connected to a transmission element 41 in the form of a friction belt (or a toothed belt) are coupled together. The input element 40 is again with the clutch unit 24th operatively connected while the output element 42 the spindle 260 assigned and non-rotatable with the spindle 260 connected is.

In yet another, third embodiment, the transmission unit 25th thanks to a continuously variable transmission 5 realized that an adjustable input element 50 , an adjustable output element 52 and an the input element 50 with the Output element 52 coupling transmission element 51 in the form of a belt.

As in 11A to 11C , 12A to 12C and 13A to 13C shown, the input element 50 Gear elements 500 , 502 in the form of cone elements that are axially along the longitudinal axis L1 can be adjusted to each other. Similarly, the output element 52 Gear elements 520 , 522 in the form of cone elements that are axially along the longitudinal axis L2 can be adjusted to each other. By axially adjusting the gear elements 500 , 502 on the one hand and the gear elements 520 , 522 on the other hand, the transmission ratio between the input element 50 and the output element 52 can be adjusted continuously.

This is done by adjusting the gear elements 500 , 502 in one direction of adjustment A1 towards each other to the transmission element 51 in the form of the belt on the input element 50 offset radially outward by the transmission element 51 on cone surfaces facing each other 501 , 503 of the gear elements 500 , 502 accumulates like this in the transition from 11 A to 11 B, 12A to 12B and 13A 13B. The effective radius on the input element 50 is thus (continuously) enlarged. It is synchronized by adjusting the gear elements 520 , 522 in one direction of adjustment A2 axially away from each other the transmission element 51 in the form of the belt on cone surfaces 521 , 523 of the gear elements 520 , 522 of the output element 52 offset radially inward, as in the transition from 11 A to 11C, 12A to 12C and 13A 13C. The effective radius on the output element 22 is thus (continuously) reduced in size. As a result, the translation of the rotary motion is increased.

By reverse adjustment of the gear elements 500 , 502 , 520 , 522 the translation can be adjusted in the opposite direction.

Adjusting the gear elements 500 , 502 , 520 , 522 can be controlled by a controller 6 take place, which can have an actuator, for example, which can be driven by an electric motor or electromagnetically (via a coil). Alternatively, the gear ratio can be set manually by means of a manually operated mechanical actuator.

If an electronic control is provided for setting the transmission ratio, the transmission ratio can be set, for example, as a function of a speed or a torque on the spindle 260 respectively.

The different units of the door drive device 2nd are, in one embodiment, modular and can be modularly combined and scaled. For example, different sized drive units 22 , differently dimensioned gear units 23 and / or differently dimensioned coupling units 24th be used to attach to the door operator 2nd to provide a desired power and a desired torque.

The output unit 26 in the form of the spindle drive, the same part can be used together with different units, with the spindle also being conceivable and possible 260 depending on, for example, an adjustment path to be provided, for example spindles 260 to use different lengths.

It is also possible to use the door drive device 2nd to be equipped with all of the units or only a subset of the units in different expansion stages. For example, in a (reduced) stage of expansion on the drive unit 22 to be dispensed with in order to provide a manual door drive which takes over a locking function and a damping function for a manual adjustment movement.

The door operator 2nd is, in the illustrated embodiment, designed so that one from the drive unit 22 , the gear unit 23 , the clutch unit 24th and the transmission unit 25th existing first assembly and one by the output unit 26 formed, second assembly can be connected to each other in different positions, as shown in 14 to 22 is shown. This is made possible in particular by the fact that the housing part 271 the output unit 26 via attachment points 275 , 276 on the housing section 274 of the housing part 270 and on the housing part 271 in different rotational positions and also optionally on different sides of the through the housing parts 270 , 271 formed housing assembly can be attached like this 14 to 22 can be seen.

This is the case with the example 14 from the drive unit 22 , the gear unit 23 , the clutch unit 24th and the transmission unit 25th existing assembly below the output unit 26 arranged, the adjustment part 21st on one of the drive unit 22 remote side from the housing part 271 exit.

In the example according to 15 is the output unit 26 around the longitudinal axis L2 rotated by 180 °.

In the example according to 16 is the output unit 26 below that from the drive unit 22 , the gear unit 23 , the clutch unit 24th and the transmission unit 25th existing assembly arranged.

In the example according to 17th is the output unit 26 by an angle not equal to 180 ° around the longitudinal axis L2 to that from the drive unit 22 , the gear unit 23 , the clutch unit 24th and the transmission unit 25th existing assembly twisted.

In the example according to 18th are the output unit 26 and that from the drive unit 22 , the gear unit 23 , the clutch unit 24th and the transmission unit 25th existing assembly arranged side by side. The output unit 26 is here, compared to the arrangement according to 14 to approximately 90 ° to that from the drive unit 22 , the gear unit 23 , the clutch unit 24th and the transmission unit 25th existing assembly twisted.

In the example according to 19th is the output unit 26 at the attachment points 276 of the housing part 271 arranged (see also 7 ), so that the output unit 26 and the drive unit 22 to different sides from the transmission unit 25th extend.

In the examples according to 20th to 22 is the output unit 26 again at different angles around the longitudinal axis L2 to that from the drive unit 22 , the gear unit 23 , the clutch unit 24th and the transmission unit 25th existing assembly twisted.

Regardless of the position of the output unit 26 and the other units to each other there is an operative connection of the spindle 260 with the transmission unit 25th , so that the door drive device 2nd is operationally usable.

Due to the flexible combination and fastening of the modules to each other, the design of the door drive device 2nd can be flexibly adapted to the installation space conditions, which means that the door drive device can be used variably 2nd in very different door environments on different vehicle doors 11 enables. The door operator 1 can be flexibly scalable, whereby partly interchangeable functional components and partly identical parts can be used, which enables inexpensive provision with flexible usability and adaptability.

The idea on which the invention is based is not limited to the exemplary embodiments described above, but can also be implemented in completely different embodiments.

A door drive device of the type described can be used in particular on a vehicle side door as well as on a tailgate or also on another vehicle opening.

Reference symbol list

1

vehicle

10th

body

11

Vehicle door

110

Door interior

111

Door hinge

2nd

Door drive device

20th

joint

21st

Adjustment part (tether)

210, 211

The End

22

Drive unit

220

Motor shaft

23

Gear unit

230

wave

24th

Clutch unit

25th

Transmission unit

26

Output unit

260

spindle

261

Spindle nut

262

Longitudinal guidance

27th

casing

270-272

Housing assembly

273

Attachment points

274

Housing section

275, 276

Attachment points

277

Guide bars

3rd

Helical gear

30th

Input element

31

Transmission element (spur gear)

32

Output element

4th

Belt transmission

40

Input element

41

Transmission element (belt)

42

Output element

5

Continuously variable transmission

50

Input element

500, 502

Gear element

501, 503

Conical surface

51

Transmission element (belt)

52

Output element

520, 522

Gear element

521, 523

Conical surface

6

Control device

L1, L2

Longitudinal axis

O

Opening direction

Q

Transverse axis

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 102015215627 A1 [0003, 0023]

Claims (17)

Door drive device (2) for adjusting a vehicle door (11) relative to a vehicle body (10), with - an adjusting part (21) for causing an adjustment of the vehicle door (11), - an electromotive drive unit (22) and - one with the drive unit ( 22) operatively connectable output unit (26) which is coupled to the adjustment part (21) for introducing an adjustment force into the adjustment part (21), characterized in that the output unit (26) has a spindle (260) rotatable about an axis of rotation and one with the Has spindle (260) in threaded engagement with the adjusting part (21) coupled spindle nut (261), the spindle nut (261) being axially adjustable along the spindle (260) by turning the spindle (260) and thereby the adjusting part (21) Adjusting the vehicle door (11) is movable. Door drive device (2) after Claim 1 , characterized by a transmission unit (25) for transmitting a rotary movement from the drive unit (22) to the output unit (26). Door drive device (2) after Claim 2 characterized in that the drive unit (22) has a motor shaft (220) which can be rotated about a first longitudinal axis (L1), the axis of rotation of the spindle (260) being along a second longitudinal axis (L2) parallel to the first longitudinal axis (L1) ) is extended. Door drive device (2) after Claim 3 , characterized in that the transmission unit (25) has an input element (30, 40, 50) rotatable about the first longitudinal axis (L1) and an output element (32, 42, 52) rotatable about the second longitudinal axis (L2), the transmission unit (25) designed to transmit a rotational movement of the input element (30, 40, 50) about the first longitudinal axis (L1) into a rotational movement of the output element (32, 42, 52) about the second longitudinal axis (L2). Door drive device (2) according to one of the Claims 2 to 5 , characterized in that the transmission unit (25) has a spur gear (3), a belt transmission (4) or a continuously variable transmission (5). Door drive device (2) after Claim 5 , characterized in that the continuously variable transmission (5) has an input element (50) with a first transmission element (500, 502), an output element (52) with a second transmission element (520, 522) and an input element (50) with the output element (52) coupling transmission element (51), wherein the first gear element (50) and / or the second gear element (52) are infinitely adjustable for setting a transmission ratio. Door drive device (2) according to one of the preceding claims, characterized by a clutch unit (24) which can be switched between a clutch state and a freewheeling state, the clutch unit (24) being designed, in the clutch state, an operative connection between the drive unit (22) and the To produce output unit (26) and to cancel the operative connection in the freewheeling state. Door drive device (2) after Claim 7 , characterized in that the clutch unit (24) can additionally be switched into a braking state, the coupling unit (24) being designed to brake a movement of the output unit (26) in the braking state. Door drive device (2) according to one of the preceding claims, characterized in that the drive unit (22) is part of a first assembly and the output unit (26) is part of a second assembly, the first assembly and the second assembly being able to be arranged in different positions relative to one another and with one another are operatively connectable. Door drive device (2) after Claim 9 , characterized in that the first assembly has a first housing assembly (270, 271) and the second assembly has a second housing assembly (272), the first housing assembly (270, 271) and the second housing assembly (272) being attachable to one another in different positions . Door drive device (2) after Claim 10 , characterized in that the first housing assembly (270, 271) and the second housing assembly (272) can be fastened to one another in different positions rotated relative to one another about the axis of rotation of the spindle (260). Door drive device (2) after Claim 10 or 11 , characterized in that the first housing assembly (270, 271) can be fastened to the second housing assembly (272) in positions reversed along the axis of rotation. Door drive device (2) according to one of the Claims 10 to 12 , characterized in that the first housing assembly (270, 271) has fastening points (275, 276) on sides facing away from one another along the axis of rotation of the spindle (260), the second housing assembly (272) optionally being attachable to each of the sides. Door drive device (2) for adjusting a vehicle door (11) relative to a vehicle body (10), with - an adjusting part (21) for causing an adjustment of the vehicle door (11), - an electromotive drive unit (22) and - one with the drive unit ( 22) operatively connectable output unit (26), which is coupled to the adjustment part (21) for introducing an adjustment force into the adjustment part (21), characterized by a transmission unit (25) for transmitting a rotary movement from the drive unit (22) to the output unit (26 ), the transmission unit (25) having a continuously variable transmission (5). Door drive device (2) after Claim 14 , characterized in that the continuously variable transmission (5) has an input element (50) with a first transmission element (500, 502), an output element (52) with a second transmission element (520, 522) and an input element (50) with the output element (52) coupling transmission element (51), wherein the first gear element (50) and / or the second gear element (52) are infinitely adjustable for setting a transmission ratio. Modular system for producing a door drive device (2) for adjusting a vehicle door (11) relative to a vehicle body (10), the modular system comprising: - an adjusting part (21) for causing the vehicle door (11) to be adjusted, - an electromotive drive unit (22 ) and - an output unit (26) which can be operatively connected to the drive unit (22) and which is coupled to the adjustment part (21) for introducing an adjustment force into the adjustment part (21), characterized by a first transmission unit which has a spur gear (3), a second transmission unit, which has a belt transmission (4), and a third transmission unit, which has a continuously variable transmission (5), the door drive device (2) for transmitting a rotary movement from the drive unit (22) to the output unit (26) optionally with the first transmission unit, the second transmission unit or the third transmission unit can be produced. Modular system according to Claim 16 , characterized in that the drive unit (22) and the output unit (26) are modular and can be connected to one another either via the first transmission unit, the second transmission unit or the third transmission unit.

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