EP3480406A1 - Door drive with locking device - Google Patents

Abstract

The present invention relates to a door drive (10) for a sliding door (12) with a locking device (28) comprising an electric drive device (14) with a second direction via the electric drive device (14) in a first direction and a different direction to the first direction drivable drive element (16), wherein the drive element (16) with at least one sliding door (12) is coupled, which is displaceable via the drive element (16) between an open position and a closed position, and one with the electric drive means (14) via an actuating mechanism (26) coupled locking device (28) for locking and / or unlocking of the drive element (16) displaceable sliding door (12) in the closed position, wherein the actuating mechanism (26) has a freewheel (30), so that in a manual displacement of the Sliding door (12) from the open position to the closed position on a via the electric drive means (14) and via the actuating mechanism (26) to the locking device (28) applied energy can be decoupled.

Description

The present invention relates to a door drive for a motor vehicle and / or a rail-bound vehicle with a locking device, wherein the door drive has a drive device and a locking device coupled to the drive device via an actuating mechanism.

Door drives for a motor vehicle or a rail-bound vehicle are well known. About the known door drives a sliding door arranged in a rail vehicle can preferably be automatically moved between an open position and a closed position, wherein in the open position, a passage is opened and locked in the closed position of the passage.

From the DE 10 2014 101 036 A1 For example, an automatic sliding door with a drive unit and at least one movable door leaf is known. The door leaf is displaceable between an open and a closed position. The drive unit has at least one electric drive motor with gearbox and an endless toothed belt, to which the door leaf is fastened by means of carriers on a strand. The sliding door has a locking device with which the movable door can be locked or unlocked, wherein the locking device acts on the motor shaft of the drive motor.

In principle, it is furthermore known that in the case of an at least temporary decommissioning of the electrical door system, the sliding door can be displaced manually from the open position to the closed position, and this can also be locked by the displacement of the sliding door into the closed position. However, it has been repeatedly observed that it depends on the correct momentum for closing the sliding door and in particular for the associated locking of the sliding door, with which the sliding door is moved from the open position to the closed position. If the sliding door is slid too boldly, it usually springs open again before the lock can engage. If the sliding door is pushed too weak, it may happen that the sliding door does not even reach the closed position. Thus, for the manual closing of the sliding door, especially in untrained persons, often several Trials necessary. For rail vehicles, this problem can lead to delays in the schedule. Likewise, the frustration of passengers can quickly increase if the sliding door can not be closed manually right away.

There is a continuing need to further develop the door drive of motor vehicles and / or rail vehicles, so that a sliding door is manually displaced easily from the open position to the closed position and can also be locked in the closed position.

The object of the present invention is to provide a door drive with a locking device in which a sliding door in a comfortable and easy way manually from the open position to the closed position displaceable and lockable in the closed position.

According to the invention the object is achieved by a door drive with the features of the protection claim 1. Advantageous and / or preferred embodiments or further developments of the invention are specified in the dependent claims, which may each individually or in combination constitute an aspect of the invention.

According to the invention, a door drive is provided for a sliding door with a locking device, comprising an electric drive device with a drive element which can be driven via the electric drive device in a first direction and a second direction different from the first direction, wherein the drive element is coupled to at least one sliding door, which is connected via the Drive element between an open position and a closed position is displaceable, and coupled to the electric drive means via an actuating mechanism locking means for locking and / or unlocking the movable via the drive element sliding door in the closed position, wherein the actuating mechanism has a freewheel, so that at a manual displacement the sliding door from the open position to the closed position via the electric drive means and via the operating mechanism a The energy applied to the locking device can be decoupled.

It is thus an aspect of the invention that the door drive for a sliding door of a motor vehicle and / or a rail vehicle has an electric drive device with a drive element. The drive element can be driven and / or actuated via the electric drive device in a first direction and a second direction different from the first direction. At least one sliding door is coupled to the drive element, so that the sliding door can be displaced via the respective drive direction of the electric drive device between an open position and a closed position. The opening position is usually a position at which an opening and / or a passage of the motor vehicle and / or the rail-bound vehicle is at least partially released. In the closed position, the opening and / or the passage is blocked.

The electric drive device is coupled via an actuating mechanism with a locking device for locking and / or unlocking the sliding over the drive element sliding door in the closed position, wherein the actuating mechanism is preferably designed as a lever element. The locking device is about the actuating mechanism in direct operative connection and thus does not attack the drive element.

The actuating mechanism arranged between the electric drive device and the locking device has a freewheel which decouples an energy applied to the locking device via the electric drive device and via the actuating mechanism in the case of a manual displacement of the sliding door from the open position to the closed position. This means that in a manual displacement of the sliding door from the open position to the closed position, the drive element is driven via its coupling with the sliding door. The drive movement of the drive element is transmitted to the electric drive device, wherein when the sliding door has arrived in the closed position, the energy is transferred from the rotational movement of the electric drive device via the actuating mechanism to the locking device, whereby the latter is locked. The freewheel disposed in the actuation mechanism receives any retroactive pulse of energy transferred to the latch from the electrical drive via the actuation mechanism. In this way, the risk can be reduced and / or prevented the retroactive impulse causes a reversal of the rotational movement of the electric drive device when the sliding door is displaced too much from the opening position to the closed position, so that the lock does not engage and the sliding door does not remain in the closed position. Thus, a door drive is provided, in which a sliding door in a comfortable and simple manner, so even with a slightly more energetic operation of the sliding door, is manually displaced from the open position to the closed position and locked in the closed position.

An electric drive device is preferably understood to mean an electrically operated motor which can be operated in a first direction of rotation and in a second direction of rotation opposite to the first direction of rotation. The electrically powered engine may preferably have one or more gear stages. In this way, the drive element can be driven in two directions, so that the coupled with the drive element sliding door between the open position and the closed position is displaced.

Under a freewheel is an actuating element to understand, which transmits a force and / or movement in a first direction of movement, and in a first direction of movement opposite second direction of movement does not transmit a force and / or movement, transmits attenuated and / or delayed transmits.

A preferred development of the invention is that the freewheel is limited and / or limited. This means that the freewheel preferably transmits a force and / or movement directly and / or directly in the first direction of movement and retards and / or dampens a force and / or a movement in the second movement direction opposite to the first movement direction, wherein in the second Movement direction is formed a stop. In this way, by the damping and / or delay a retroactive impulse can be absorbed by the freewheel. In a force exerted on the electric drive means rotational movement to shift the sliding door from the closed position to the open position, the damping and / or retarding portion is first overcome before a power transmission via the actuating mechanism for unlocking the Locking device takes place. In this way, an operating mechanism is provided with a freewheel, which allows a comfortable operation of the sliding door in automatic operation and in manual operation.

In a preferred embodiment of the invention it is provided that the locking device can be locked via a dead center. In this way, a bistable locking device is provided, in which both in the electrical operation of the door drive and in a manual operation of the sliding door, the sliding door from the open position to the closed position is displaceable and locked in this.

An advantageous development of the invention is that the actuating mechanism has a locking-side first coupling joint and a drive device side second coupling joint, and the freewheel between the first coupling joint and the second coupling joint is arranged. In this way, the freewheel may preferably be formed in a rectilinear portion of the actuating mechanism between the first coupling joint and the second coupling joint. The actuating mechanism is preferably designed as a lever element. In this way, a mechanical actuating mechanism is provided with a freewheel.

In principle, the freewheel can be designed such that it transmits a force and / or movement in a first direction of movement. An advantageous development of the invention is that the freewheel has a spring-damping element. The spring-damping element may preferably be arranged in the rectilinear portion of the actuating mechanism between the first coupling joint and the second coupling joint. Via the spring-damping element, a force and / or movement can be transmitted in the first direction of movement. In particular, it is possible that in the displacement of the sliding door from the open position to the closed position, the movement of the sliding door via the drive element is transmitted to the drive means, wherein the energy from the drive means via the actuating mechanism and the freewheel in the first direction of movement to the locking device is transmitted and transferred to the locking position. A retroactive pulse of applied energy is transmitted through the spring-damper element received and / or damped, so that the locking device remains in the locking position and the drive means is not driven in an opposite rotational movement for displacing the sliding door from the closed position to the open position. Thus, the energy applied to the locking device can be decoupled in a simple manner.

Alternatively and / or in addition thereto, a preferred development of the invention provides that the actuating mechanism has an engaging to the electric drive means Anlenklasche, preferably acts on the second coupling joint, and the freewheel is formed on and / or in the Anlenklasche. The Anlenklasche is therefore a part of the actuating mechanism which acts directly on the electric drive device.

In an advantageous development of the invention, it is provided that the drive element is an endless toothed belt, an endless chain or a spindle. If the drive element is an endless toothed belt or an endless chain, then the sliding door is connected to the endless toothed belt or the endless chain via a driver. If the drive element is a spindle, the sliding door is preferably coupled to the drive element via a spindle nut. In this way, drive elements are provided with which a connected thereto sliding door in a simple and comfortable way both automatically and manually displaced.

An advantageous development of the invention lies in the fact that the sliding door has a rotor which is displaceably arranged in a guide of a stationary arranged guide plate. In this way, the direction of movement of the sliding door between the open position and the closed position can be set in a simple manner via the runners arranged displaceably in the guide.

In principle, only one sliding door can be coupled to the drive element. A preferred embodiment of the invention is that two sliding doors are coupled to the drive element. The sliding doors are preferably such coupled to the drive element, that they are arranged adjacent to each other in the closed position and are arranged spaced from each other in the open position.

The invention also relates to the use of the door drive according to the invention for arrangement in a vehicle, in particular in a motor vehicle and / or rail vehicle, wherein in a manual displacement of the sliding door from the open position to the closed position via the electric drive means and the actuating mechanism on the locking device applied energy can be decoupled via the freewheel.

The invention will be explained in more detail with reference to the following figure. The embodiment is not intended to be limiting, but rather to be exemplary, and is intended to enable those skilled in the art to practice the invention. The applicant reserves the right to make individual or several of the features disclosed in the exemplary embodiment the subject of claims for protection or to include such features in existing claims for protection. The embodiment will be explained in more detail with reference to a figure.

It shows:
Fig. 1 a kinematic model of a door drive with a locking device according to a preferred embodiment.

The FIG. 1 shows a kinematic model of a door drive 10 for a sliding door 12 of a motor vehicle and / or a rail-bound vehicle. The door drive 10 has an electric drive device 14 with a drive element 16. The drive element 16 can be driven and / or actuated via the electric drive device 14 in a first direction and a second direction different from the first direction. The electric drive device 14 is preferably designed as an electric motor, which preferably has at least one transmission. The drive element 16 is an endless toothed belt in the present embodiment.

Two sliding doors 12 are coupled to the drive member 16. The sliding doors 12 are each connected via a driver 18 with the drive element, wherein the driver engages a strand of the drive element 16. The sliding doors can be displaced between an open position and a closed position as a function of the respective drive direction of the electric drive device 14. The opening position is usually a position at which an opening and / or a passage of the motor vehicle and / or the rail-bound vehicle is at least partially released. In the closed position, the opening and / or the passage is blocked.

At least one sliding door 12 has a rotor 20, which is arranged displaceably in a guide 22 of a stationarily arranged guide plate 24. In this way, the direction of movement of the sliding door 12 between the open position and the closed position over the run in the guide 22 and arranged displaceable rotor 20 can be specified in a simple manner.

The electric drive device 14 is coupled via an actuating mechanism 26 with a locking device 28 for locking and / or unlocking the sliding over the drive element 16 sliding doors 12 in the closed position. The locking device 28 stands on the actuating mechanism 26 in direct operative connection and thus does not attack the drive element 16.

The actuating mechanism 26 arranged between the electric drive device 14 and the locking device 28 has a freewheel 30 which decouples an energy applied to the locking device 28 via the electric drive device 14 and via the actuating mechanism 26 when the sliding doors 12 are displaced from the open position to the closed position , This means that in a manual displacement of the sliding doors 12 from the open position to the closed position, the drive element 16 is driven via its coupling with the sliding door 12. The drive movement of the drive element 16 is transmitted to the electric drive device 14, wherein when the sliding doors 12 have arrived in the closed position, the energy is transferred from the rotational movement of the electric drive means 14 via the actuating mechanism 26 to the locking device 28, whereby it locks. The freewheel 30 disposed in the actuating mechanism 26 absorbs any retroactive impulse of energy, which is transmitted from the electric drive device 14 via the actuating mechanism 26 to the locking device 28, on. In this way, the risk can be reduced and / or prevented that the retroactive impulse causes a reversal of the rotational movement of the electric drive device 14 at a too sweeping displacement of the sliding doors 12 from the open position to the closed position, so that the lock does not engage and the sliding doors 12 do not remain in the closed position. Thus, a door drive 10 is provided in which the sliding doors 12 in a comfortable and simple manner, so even with a slightly more sweeping operation of the sliding doors 12, are manually displaced from the open position to the closed position and locked in the closed position.

Under the freewheel 30 is an actuating element to understand, which transmits a force and / or movement in a first direction of movement, and transmits a force and / or movement attenuated and / or delayed transmits in one of the first direction of movement opposite second direction of movement.

The actuating mechanism 26 is preferably designed as a lever element and has a locking-side first coupling joint 32 and a drive device side second coupling joint 34, wherein the freewheel 30 between the first coupling joint 32 and the second coupling joint 34 is arranged. In this way, the freewheel 30 may preferably be formed in a rectilinear portion of the actuating mechanism 26 between the first coupling joint 32 and the second coupling joint 34, wherein the freewheel 30 is formed as a spring-damping element 36.

Via the spring-damping element, a force and / or movement can be transmitted in the first direction of movement. In particular, it is possible that in the displacement of the sliding doors 12 from the open position to the closed position, the movement of the sliding doors 12 is transmitted via the drive member 16 to the electric drive means 14, wherein the energy from the electric drive means 14 via the actuating mechanism 26 and the Freewheel 30 is transmitted to the locking device 28 in the first direction of movement and transferred to the locking position. A retroactive pulse of the applied energy is received and / or damped via the spring-damper element 36, so that the locking device 28 in the locking position remains and the electric drive means 14 is not driven in an opposite rotational movement for displacing the sliding doors 12 from the closed position to the open position. Thus, the energy applied to the locking device 28 can be decoupled in a simple manner.

The freewheel 30 is limited and / or limited. This means that the freewheel 30 has a stop 38. In a force exerted on the electric drive means 14 rotational movement to shift the sliding doors 12 from the closed position to the open position, the damping and / or retarding portion of the freewheel 30 is first overcome before a force transmission via the stop 38 for unlocking the locking device 28 takes place. In this way, an operating mechanism 26 is provided with a freewheel 30, which allows a comfortable operation of the sliding doors 12 in automatic operation and in manual operation.

The actuating mechanism 26 also has a to the electric drive element 14 engaging Anlenklasche 40, to which preferably the second coupling joint 34 engages, and the freewheel 30 is formed on and / or in the Anlenklasche 40.

reference numeral

10

door drive

12

sliding door

14

Electric drive device

16

driving element

18

takeaway

20

runner

22

guide

24

guide plate

26

actuating mechanism

28

locking device

30

freewheel

32

First coupling joint

34

Second coupling joint

36

Spring damping element

38

attack

40

Anlenklasche

Claims (10)

Door drive (10) for a sliding door (12) with a locking device (28), comprising an electric drive device (14) having a drive element (16) which can be driven via the electric drive device (14) in a first direction and a second direction different from the first direction, the drive element (16) being coupled to at least one sliding door (12) via the drive element (16) between an open position and a closed position is displaceable, and a locking device (28) coupled to the electric drive device (14) via an actuating mechanism (26) for locking and / or unlocking the sliding door (12) displaceable via the drive element (16) in the closed position, wherein the actuating mechanism (26) has a freewheel (30), such that upon a manual displacement of the sliding door (12) from the open position to the closed position, one via the electric drive device (14) and via the actuating mechanism (26) to the locking device (28) applied energy can be decoupled. Door drive according to claim 1, characterized in that the freewheel (30) is limited and / or limited. Door drive according to claim 1 or 2, characterized in that the locking device (28) can be locked via a dead center. Door drive according to one of claims 1 to 3, characterized in that the actuating mechanism (26) has a locking side first coupling joint (32) and a drive device side second coupling joint (34), and the freewheel (30) between the first coupling joint (32) and second coupling joint (34) arranged and / or is formed. Door drive according to one of claims 1 to 4, characterized in that the freewheel (30) comprises a spring-damping element. Door drive according to one of claims 1 to 5, characterized in that the actuating mechanism (26) has a to the electric drive element (14) engaging Anlenklasche (40) to which preferably the second coupling joint (34) engages, and the freewheel (30) is formed on and / or in Anlenklasche (40). Door drive according to one of claims 1 to 6, characterized in that the drive element (16) is an endless toothed belt, an endless chain or a spindle. Door drive according to one of claims 1 to 7, characterized in that the sliding door (12) has a rotor (20) which is displaceably arranged in a guide (22) of a stationary arranged guide plate (24). Door drive according to one of claims 1 to 8, characterized in that two sliding doors (12) are coupled to the drive element (16). Use of a door drive (10) according to one of the preceding claims for arrangement in a vehicle, in particular in a motor vehicle and / or rail-bound vehicle, with a manual displacement of the sliding door (12) from the open position to the closed position via the electric drive element (14 ) and via the actuating mechanism (26) on the locking device (28) applied energy via the freewheel (30) can be decoupled.

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