AIRCRAFT SLIDING DOOR

Description

[0001] The invention relates to an aircraft sliding door, comprising: a door leaf which can be moved between a closed position and an open position in the opening or closing direction, with an upper door part and a lower door part which are arranged in an extended state in the closed position and in a pushed-together state in the open position, a guide rail inclined to the opening or closing direction for guiding the door leaf between the closed and open positions, a drive device with an electric motor for supporting the movement of the door leaf from the open to the closed position.

[0002] Furthermore, the invention relates to an aircraft comprising: an interior having a first spatial area and a second spatial area, an aircraft sliding door arranged between the first spatial area and the second spatial area of the interior.

[0003] D1-US 2013 / 020439 A1 discloses various designs of a partition for a passageway in an aircraft cabin. In the event of an engine failure or power failure, the door can be moved manually.

[0004] An aircraft sliding door ("pocket door") is known from EP 2 540 616 B1. The sliding door has a two-part door leaf that is pushed together transversely to the opening direction when the door is opened, thus saving space. The aircraft sliding door can be used to separate two compartments in an aircraft, with the door leaf being stowed in a pocket ("pocket") of a partition wall when open. For this purpose, the aircraft sliding door is adapted to the geometry inside the aircraft. The upper edge of the door frame is curved and thus adapted to the cross-section of the aircraft. The door leaf has a corresponding curvature so that the door opening can be completely closed by the door leaf. The door leaf has an upper part of the door leaf and a lower part of the door leaf, which are connected by linear guides. The linear guide of the upper part of the door leaf is arranged so that it slopes upwards in the closing direction.This allows the upper door leaf section, which is adapted to the curved upper edge of the door opening, to retract into the curve from below, thus allowing the door to close completely. The linear guide of the lower door leaf section is arranged at an angle downwards in the closing direction. As a result, when the door is opened, the upper door leaf section moves upwards and into the hollow upper door leaf section. A gas spring is provided to assist the closing of the aircraft sliding door.

[0005] From FR 3 050 717 A1, a different type of separation device for separating an aircraft cabin is known.

[0006] WO 2018 / 132856 A1 and WO 91 / 00823 A1 show aircraft sliding doors.

[0007] EP 2 540 616 B1 also mentions electric motor-operated locking mechanisms, but describes them as disadvantageous because such locking mechanisms are no longer fully operational in the event of a power failure.

[0008] It is therefore an object of the invention to provide a stowable sliding door of the type mentioned above that alleviates or eliminates at least some of the disadvantages of the prior art. Accordingly, one object of the invention is preferably to provide a sliding door that is easy and reliable to open and close and meets high safety standards with minimal structural complexity.

[0009] The object is achieved by a sliding door having the features of claim 1. Preferred embodiments are specified in the dependent claims.

[0010] According to the invention, the drive device has a spindle connected to the electric motor, in particular a ball screw, which is inclined to the opening or closing direction, so that the door leaf is automatically moved into the open position along the spindle when the electric motor is de-energized.

[0011] In the open position of the sliding door, with the passage opening released, the upper and lower parts of the door leaf are pushed together transversely to the opening or closing direction. Since the upper and lower parts of the door overlap in the open position, the door leaf can be stowed in a space-saving manner in the open position, particularly in a partition wall between two spatial areas of the aircraft interior. In the closed position, the door leaf is extended transversely to the closing direction in order to close the passage opening. The aircraft sliding door can be used, for example, to separate two spatial areas in the interior of an aircraft. The aircraft sliding door is therefore preferably adapted to the geometry of the interior. The upper edge of the upper part of the door is therefore preferably curved. The upper and lower parts of the door are preferably each connected to at least one guide rail.The at least one guide rail of the upper door section is inclined downwards when viewed in the opening direction. The end of the guide rail facing the passage opening is therefore higher than the end of the guide rail facing away from the passage opening. This ensures that the upper door section, which is adapted to the curved upper edge of the door opening, can move into the curve from below, thus achieving complete closing of the door. Preferably, at least one guide rail of the lower door section is arranged so as to be inclined upwards when viewed in the opening direction. Depending on the design, a locking device can be provided with which the door leaf can be locked in the closed position. To close the sliding door, the door leaf is connected to the electric motor of the drive device in order to close or open the sliding door. According to the invention, the drive device has the spindle, which can be rotated relative to the (preferably horizontal) opening or closing axis.Closing direction in the sliding plane is inclined at an angle of inclination other than 0° or 180°. The arrangement and design of the spindle is designed so that the sliding door is moved independently, i.e. solely under the effect of gravity, from the closed to the open position in a de-energized state, i.e. in a state without power assistance, for example in the event of a power failure, in order to release the passage opening. The spindle is inclined downwards as seen in the opening direction. The end of the spindle facing the passage opening is therefore higher than the end of the spindle facing away from the passage opening. The angle of inclination of the spindle to the opening or closing direction is preferably from 25° to 45°, particularly preferably from 30° to 40°, for example substantially 34°. The spindle is preferably arranged substantially parallel to the guide rail of the upper part of the door.The sliding door will therefore open automatically in the event of a power failure or a related emergency, as gravity causes the sliding door to glide into the open position. The lower and upper parts of the door are pushed together with the help of the guide rail. The lower part of the door is preferably lighter than the upper part of the door to ensure automatic sliding together. The sliding plane is also the main extension plane of the sliding door. The spindle has an external thread which increases the distance traveled along the spindle and thus reduces the opening speed of the sliding door. In a particularly preferred embodiment, the sliding door has an essentially constant opening speed from the closed to the open position. This advantageously allows the sliding door to open gently.It is particularly preferred if the drive device can move the sliding door from the open to the closed state and from the closed to the open state without the need for additional gas springs and dampers. Such additional devices were required in known designs, e.g., with a toothed belt drive, to decelerate the sliding door during the final section of its movement using gravity during storage.

[0012] For the purposes of this disclosure, the location and direction specifications, such as "horizontal", "vertical", "top" or "bottom", refer to the intended installation state of the sliding door in the aircraft when the aircraft is in a horizontal orientation.

[0013] The electric motor is preferably a brushless DC motor.

[0014] The electric motor is preferably configured to rotate the spindle to move the sliding door from the open position to the closed position, and preferably also from the closed position to the open position. The electric motor can preferably be connected to the spindle via a gear mechanism. The gear mechanism can convert a motor speed of the electric motor into a drive speed of the spindle. The gear ratio between the motor speed and drive speed is preferably between 1:1 and 1:10.

[0015] In a preferred embodiment, the drive device has a nut that receives the spindle and moves linearly along the spindle when the spindle is rotated by the electric motor. The spindle is preferably a recirculating ball screw. In this embodiment, grooves are incorporated in the spindle and the nut, which receive balls and thus create a positive connection between the spindle and the nut. Return channels are preferably provided in the nut, via which the balls are returned. The path of the balls is thus closed. A recirculating ball screw is known, for example, from DE 100 22 715 B4. The nut is preferably connected to the door leaf in such a way that the movement of the nut along the spindle is converted into the opening or closing movement of the door leaf.The interaction of the nut and spindle reduces the opening speed when the electric motor is de-energized, eliminating the need for additional damping elements such as gas springs to dampen the opening movement of the door leaf. Furthermore, the electric motor can also act as a generator to contribute to the braking effect.

[0016] In a preferred embodiment, the nut is connected to a door hinge for the upper door section via a drive mechanism. The door hinge can be attached, for example, to a (preferably substantially vertical) longitudinal edge of the upper door section. With the aid of the drive mechanism, the movement of the nut, when the electric motor is driven, is transmitted to the door hinge, which pulls the door leaf, in particular, from the closed to the open position.

[0017] For force transmission between the drive device and the door leaf, it is advantageous if the drive device comprises a drive element, in particular a drive pin, connected to the nut and a receptacle connected to the door hinge. The drive element, in particular a drive pin, transmits the movement of the nut along the spindle to the receptacle, which is connected to the door hinge in such a way that the door leaf can be closed, and in particular also opened, with the aid of the drive device.

[0018] In a preferred embodiment it is provided that the driving element is movably connected to the receptacle on the door suspension in a first direction parallel to the door leaf and perpendicular to the longitudinal axis of the spindle and / or that the driving element is movably connected to the receptacle on the door suspension in a second direction perpendicular to the door leaf and perpendicular to the longitudinal axis of the spindle and / or that the driving element is firmly connected to the receptacle in a third direction parallel to the longitudinal axis of the spindle.

[0019] The mobility in the first and second directions helps to prevent the door leaf from becoming jammed. The degrees of freedom in the first and second directions, starting from the neutral position, preferably allow a movement of at least + / - 2 millimeters (mm), in particular from 3 mm to 10 mm, for example essentially + / - 4 mm. The driving element is only firmly connected to the holder in the third direction, parallel to the longitudinal axis of the spindle and thus in the direction of movement of the nut along the spindle, i.e. without play. This can ensure effective driving of the holder (and thus also of the door leaf). Furthermore, jerky movements of the door leaf caused by external influences can be detected along the third direction and, if necessary, the closing of the sliding door can be interrupted.

[0020] Preferably, the receptacle has a recess in which a holder for the driving element is arranged so as to be movable in the first direction and substantially immovable in the third direction, wherein the driving element is arranged on the holder so as to be movable in the second direction. The holder makes it easy to transmit movements of the driving element only in the third direction to the receptacle on the door leaf in a force-locking manner.

[0021] In a preferred embodiment, a device for detecting an excess torque of the electric motor is provided, with which a blocked state of the door leaf can be detected during transfer between the closed and open positions. A blockage of the door leaf could lead to damage to the sliding door, in particular to the door leaf and / or the drive device, or to injury to a user. If an excess torque is detected, the drive direction of the electric motor can be reversed or, if this is not possible, for example in the event of a software error, the sliding door can be de-energized so that the sliding door is transferred into the open position by gravity.

[0022] In a preferred embodiment, the electric motor is rotatably mounted on a support frame of the drive device. The electric motor can be rotated or pivoted about its drive axis due to the torque acting during operation of the electric motor. Damage to the electric motor or spindle due to increased torque can be avoided in this arrangement. Furthermore, the rotation of the motor can be used to determine excessive torque, for example, due to a jammed door.

[0023] In a preferred embodiment, the drive device has at least a first spring which presses the electric motor from a first state rotated in one direction towards a neutral position, wherein the drive device preferably has a second spring which presses the electric motor from a second state rotated in the other direction towards the neutral position. The electric motor is mounted so as to be rotatable in both directions about its drive axis, starting from its neutral or central position. The electric motor is loaded in one direction when the sliding door is opened and in the other direction when the sliding door is closed. The two springs each press the electric motor into the neutral position and thus counteract the torque on the electric motor. The pivoting of the electric motor is proportional to the torque acting on it.

[0024] In a preferred embodiment, the device for detecting the locked state of the door leaf comprises a sensor that detects rotation of the electric motor about its drive axis due to the torque being exceeded. The pivoting or rotation of the electric motor is proportional to the torque acting on it. Thus, the torque being exceeded can be detected based on the rotation of the electric motor. The sensor detects the exceeding of a certain angle of rotation in order to determine a corresponding torque being exceeded.

[0025] In order to be able to detect the angle of rotation corresponding to the maximum desired torque using structurally simple means, the device for detecting the blocked state of the door leaf in a preferred embodiment has a triggering element which is connected in a rotationally fixed manner to the electric motor and which triggers the sensor when the electric motor is rotated due to the torque being exceeded.

[0026] Furthermore, the drive device can include a control unit that switches the electric motor to a de-energized state when the door leaf is detected to be blocked. By switching off the electric motor due to the torque being exceeded when the sliding door is blocked, the safety of the user can be ensured.

[0027] Preferably, the spindle has a gear ratio with which a complete rotation of the spindle causes a movement of the door leaf in the closing or opening direction of less than 30 mm, in particular from 5 mm to 15 mm. The gear ratio increases the travel along the external thread of the spindle compared to the advance of the nut along the longitudinal axis of the spindle.

[0028] Preferably, a first limit switch is provided for detecting the open position of the door leaf, and a second limit switch is provided for detecting the closed position of the door leaf. The two limit switches detect the respective end positions of the door leaf. The first and / or second limit switch can be connected to the control unit. Thus, triggering of the first or second sensor can be used to control the electric motor, in particular to switch the electric motor off.

[0029] In order to be able to release the access opening independently of the sliding mechanism in the event of exceptional circumstances, particularly in a dangerous situation, it is advantageous if at least one of the upper and lower parts of the door is pivotally mounted about a pivot axis running essentially perpendicular to the predetermined path, wherein the pivoting of the respective door part is blocked in the operating state by means of at least one securing element. This creates a known safety mechanism which can be triggered, for example, if a certain pressure difference occurs between the inside and outside of the sliding door. Alternatively, the securing element can be released by applying manual force, for example if the sliding mechanism for opening the sliding door fails. In this way, the access opening can be released in exceptional situations by swinging the sliding door open.

[0030] The present invention is further explained with reference to an embodiment shown in the drawings. Fig. 1 shows an aircraft sliding door according to the invention with a drive device in which an electric motor drives a spindle, whereby in the event of a power failure of the electric motor the sliding door slides automatically into the open position. Fig 2 shows the drive mechanism of the aircraft sliding door according to Fig. 1 in exploded view. Fig. 3 shows an exploded view of a receptacle connected to a door suspension, to which the movement of a nut of the drive device moving along the spindle is transmitted.

[0031] In Fig. 1 A stowable aircraft sliding door 1 ("pocket door") is shown, which in the embodiment shown is used in the passenger compartment of an aircraft. The sliding door 1 closes a passage opening within a door frame 2, which is designed, for example, as a partition wall of the aircraft. The door frame 2 has a border 3, which in the embodiment shown is curved according to the inner contour of the aircraft fuselage. Thus, only a reduced storage space is available next to the passage opening, which requires an adaptation of the sliding door 1 to prevent the sliding door 1 from being blocked during the opening process by the curved border 3 of the frame structure of the door frame 2. The sliding door 1 is between the Figur 1 shown closed position, in which the passage opening is closed, and an open position (not shown) in which the passage opening is exposed, along a horizontal path, the opening or closing direction 4. The sliding door 1 has two door parts forming the door leaf 5, which in the embodiment shown are designed as an upper door part 5A and a lower door part 5B. In the closed position of the sliding door 1, the door parts 5 and 5B are arranged in an extended position, in which the door parts 5A and 5B completely fill the passage opening.

[0032] In order to be able to store the sliding door 1 next to the passage opening in a space-saving manner, the door parts 5A and 5B are pushed together perpendicular to the opening direction 4 when the sliding door 1 is opened, for example by means of a handle 6. When closing, the upper door part 5A is moved vertically downwards (see arrow 7) and the lower door part 5B is moved vertically upwards (see arrow 8), so that the door parts 5A and 5B increasingly overlap when closing. When the sliding door 1 reaches the open position, the lower edges of the door parts 5A and 5B are arranged at essentially the same height, so that the overall height of the sliding door 1 in the pushed-together storage position corresponds to the height (or length) of the upper door part 5A.

[0033] As from Fig. 1 As can also be seen, the upper door section 5A is displaceably mounted by means of a guide rail 9, which is attached to the frame structure of the door frame 2. In the embodiment shown, the upper door section 5A is connected to a second guide rail 9A, which runs parallel to the guide rail 9, to increase stability. The lower door section 5B is correspondingly displaceable by means of a guide rail 10 attached to the frame structure of the door frame 2.

[0034] As from Fig. 1 As can also be seen, the guide rails 9, 9A, with which the upper door part 5A is displaceably mounted, run at a first angle of inclination to the sliding direction 4 of the sliding door 1. The angle of inclination of the guide rails 9, 9A causes the upper door part 5A to be guided downwards in the direction of arrow 7 when the sliding door 1 is opened. The guide rail 10 of the lower door part 5B is correspondingly inclined at a second angle of inclination to the horizontal track 4 of the sliding door 1, which causes the lower door part 5B to be guided upwards in the direction of arrow 8 when the sliding door 1 is opened. The guide rails 9, 9A, 10 are arranged so as to converge in the direction of sliding direction 4, so that the door parts 5A and 5B are moved in opposite directions when the sliding door 1 is opened until the pushed-together storage position is reached.In the embodiment shown, the parallel guide rails 9, 9A of the upper door section 5A have a steeper gradient than the guide rail 10 of the lower door section 5B. Thus, when transferred to the stowed position, the upper door section 5A is displaced downwards in the direction of arrow 7 by a longer distance than the lower door section 5B is displaced upwards in the direction of arrow 8. The first angle of inclination of the guide rails 9, 9A of the upper door section 5A can, for example, be substantially 34°, while the angle of inclination of the guide rail 10 of the lower door section 5B can, for example, be substantially 13°.

[0035] As from Fig. 1 As can also be seen, the upper door section 5A is coupled to a drive device 11 in order to automatically move the door parts 5A and 5B from the open position to the closed position. For this purpose, the drive device 11 has an electric motor 12. The electric motor 12 drives a spindle 13, which moves the door leaf 5 from the open position to the closed position. The spindle 13 is in turn inclined at a third angle to the horizontal, whereby the door leaf 5 is automatically moved along the spindle 13 into the open position when the electric motor 12 is de-energized. In the embodiment shown, the third angle of inclination corresponds to the first angle of inclination of the guide rails 9, 9A.

[0036] The sliding door 1 also has a locking mechanism 14 with a locking unit 15 attached to the frame structure of the door frame 2, which forms a locking receptacle for a corresponding locking element (not shown) connected to a door hinge 16 of the door upper part 5A. When the sliding door 1 reaches the open position, the locking element is locked in the locking receptacle of the locking unit 15. The door lower part is attached to another door hinge 17.

[0037] Figur 2 shows the drive device 11 from Fig. 1 . The electric motor 12 can be seen, which drives the spindle 13, designed here as a recirculating ball screw. A nut 20, in this case a recirculating ball nut, is arranged on the spindle. Balls (not shown) are arranged in grooves between the spindle 13 and the nut 20, which implement the movement of the spindle 13. These balls move axially as the spindle 13 rotates. The balls are returned through return channels in the nut 20, creating a circuit.

[0038] In order to move the sliding door 1 from the open to a closed position, the electric motor 12 rotates the spindle 13, whereby the nut 20 is moved along the longitudinal direction 21 of the spindle 13.

[0039] The nut 20 is connected to the door upper part 5A via a driving device 18. The driving device 18 has a driving element connected to the nut 20, in the embodiment shown a driving pin 19, and a receptacle 22 connected to the door suspension (see Figur 3 ) on.

[0040] The spindle 13 has a transmission ratio such that one complete rotation of the spindle 13 causes a movement of the door leaf 5 in the closing or opening direction along the opening or closing direction 4 of, for example, essentially 10 mm. For this purpose, the spindle 13 has an external thread that interacts with the nut 20 via the balls. The pitch of the thread and the diameter of the spindle 13 influence the transmission ratio.

[0041] As from Fig. 2 As can also be seen, the drive device has a stationary holding frame 23 on which the spindle 13 is rotatably mounted. In addition, a motor assembly 24 is rotatably and pivotably mounted on the holding frame 23. The motor assembly 24 has the electric motor 12, which is arranged on a bearing 29. Between the electric motor 12 and the bearing 29 there is a holder 25 with a downwardly projecting web 26, the function of which is described further below. The individual components are fastened to one another by means of screws 28. The bearing 29 is arranged in a bearing housing 27. An output shaft 30 of the electric motor 12 is connected to the spindle 13 via a gear. In the embodiment shown, the gear is formed by a first toothed belt pulley 31 and a second toothed belt pulley 32, which are connected to one another via a toothed belt 33. The drive shaft 30 is connected to the first toothed belt pulley 31.By means of the belt 33, the torque is transmitted from the first toothed belt pulley 31 to the second toothed belt pulley 32, which is connected to the spindle 13. The second toothed belt pulley 32 has a larger diameter than the first toothed belt pulley 31, thereby achieving a gear ratio of, for example, 1:2 between the motor speed of the output shaft 30 of the electric motor 12 and the input speed of the spindle 13. The toothed belt 33 is tensioned by means of a tensioning pulley 35.

[0042] The drive shaft 30 projects through a passage 34 of the holding frame 23. The holding frame 23 is connected to the frame of the door frame 2.

[0043] As from Fig. 2 As can also be seen, the holder 25 has individual bores 36 on the web 26, which are arranged at different distances from the center of the holder 25. Two springs 37, 38, each connected to the holding frame 23, engage in one of these bores 36. A first spring 37 presses the electric motor 12 from a pivoted state in one direction towards a neutral position. A second spring 38 presses the electric motor 12 from a second pivoted state in the other direction towards the neutral position. The springs 37, 38 thus lead to a neutral position of the electric motor 12 or the motor assembly 24. If a torque acts on the electric motor 12, the motor assembly 24 rotates about the axis of the drive shaft 30 against the springs 37, 38 until an equilibrium state between torque and spring force is reached. The rotation of the electric motor 12 is thus proportional to the torque acting on the electric motor 12.

[0044] As from Fig. 2 As can also be seen, a device 39 is provided for detecting an excess torque of the electric motor 12, with which a blocked state of the door leaf 5 can be determined when moving between the closed and open positions. The device 39 for detecting the excess torque has a sensor 40, which detects a pivoting of the electric motor 12 due to the excess torque. For this purpose, a trigger element 41, in particular a cam, is provided which is connected to the electric motor 12 in a rotationally fixed manner. The trigger element 41 triggers the sensor 40 when the electric motor 12 pivots due to the excess torque. The excess torque is detected based on the rotation of the motor assembly 24 and thus also of the electric motor 12. The rotation depends on the torque and the spring force, whereby the spring force is in turn determined by the properties of the springs 37, 38 and the deflection of the springs 37, 38.Therefore, the triggering torque can be adjusted through the bore 36, into which the springs 37, 38 engage. The bores 36 at the outer end of the web 26 result in a smaller twisting of the motor assembly 24 than bores 36 further inward, at a constant torque on the electric motor 12. If the torque is exceeded, the electric motor can be controlled by a control unit 42 (see . Fig. 1 ) to a de-energized state. In this case, sliding door 1 automatically moves to the open position.

[0045] As from Fig. 2 As can also be seen, a first limit switch 43 is provided for detecting the open position of the door leaf 5 and a second limit switch 44 is provided for detecting the closed position of the door leaf.

[0046] Fig. 3 shows a driving device 18 which receives the driving bolt 19 on the nut 20 in the receptacle 22 connected to the door leaf 5 or the door upper part 5A.

[0047] The driving pin 19 extends into the receptacle 22. A holder 45 having a central bore 46 is provided in the receptacle 22. The driving pin 19 is received by a bushing, which in turn is received in the central bore 46 of the holder 45. The holder 45 is received in a recess 47 of the receptacle 22.

[0048] Fig. 3further shows Teflon strips 48, which reduce the friction between the holder 45 and an inner wall of the receptacle 22 in the region of the recess 47. The holder 45 is fastened in the driving device 18 by means of a cover plate 49. Screws 50 are provided for this purpose. The cover plate 49 has an elongated hole 51, which ensures mobility of the holder 45 in the recess 47. The holder 45 has a first play in the recess 47 in a first direction parallel to the door leaf 5 and perpendicular to the longitudinal axis of the spindle 13. In a third direction along the longitudinal axis of the spindle 13, the holder 45 has no play in the recess 47. The driving pin 19 is arranged on the holder 45 so as to be movable in a second direction with a second play. The second direction coincides with the longitudinal axis of the driving pin 19 and is thus normal to the main extension plane of the door leaf 5 and normal to the longitudinal axis of the spindle 13.The Teflon strips 48 essentially do not affect the first and second games.

[0049] The driving device 18 is connected to the door suspension 16 of the door upper part 5A by means of further screws 52.

Claims

1. An aircraft sliding door (1) comprising: a door leaf (5), which is slidable between a closed position and an opened position in the opening and closing direction respectively, and has a door top part (5A) and a door bottom part (5B), which are arranged in a pulled-out state in the closed position and in a pushed-together state in the opened position, a guide rail (9), inclined with respect to the opening and closing direction, for guiding the door leaf (5) between the closed position and the opened position, a drive device (11) having an electric motor (12) for assisting the movement of the door leaf (5) from the opened position to the closed position, whereby the drive device (11) comprises a spindle (13), in particular a ball screw spindle, which is connected to the electric motor (12) and is inclined to the opening and closing direction, characterised in that the door leaf (5) is automatically transferred to the opened position along the spindle (13) in a de-energised state of the electric motor (12).

2. The aircraft sliding door (1) according to claim 1, characterised in that the drive device (11) comprises a nut receiving the spindle (13), which nut travels along the spindle (13) by rotating the spindle (13) with the electric motor (12).

3. The aircraft sliding door (1) according to claim 2, characterised in that the nut is connected to a door suspension for the door top part (16) via an entraining device (18).

4. The aircraft sliding door (1) according to claim 3, characterised in that the entraining device (18) comprises an entraining element, in particular an entraining bolt (19), connected to the nut, and a receptacle (22) connected to the door suspension (16).

5. The aircraft sliding door (1) according to claim 4, characterised in that - the entraining element is movably connected to the receptacle (22) on the door suspension (16) in a first direction parallel to the door leaf (5) and perpendicular to the longitudinal axis of the spindle (13) and / or in that - the entraining element is movably connected to the receptacle (22) on the door suspension (16) in a second direction perpendicular to the door leaf (5) and perpendicular to the longitudinal axis of the spindle (13) and / or in that - the entraining element is fixedly connected to the receptacle (22) in a third direction parallel to the longitudinal axis of the spindle (13).

6. The aircraft sliding door (1) according to claim 5, characterised in that the receptacle (22) has a recess (47) in which a holder (45) for the entraining element is arranged so as to be movable in the first direction and substantially immovable in the third direction, the entraining element being arranged on the holder (45) so as to be movable in the second direction.

7. The aircraft sliding door (1) according to any one of claims 1 to 6, characterised in that a device (39) for detecting a torque overrun of the electric motor (12) is provided, with which a blocked state of the door leaf (5) can be ascertained during the transfer between the closed position and the opened position.

8. The aircraft sliding door (1) according to any one of claims 1 to 7, characterised in that the electric motor (12) is rotatably mounted on a holding frame (23) of the drive device (11).

9. The aircraft sliding door (1) according to claim 8, characterised in that the drive device (11) comprises at least a first spring (37), which pushes the electric motor (12) from a first state rotated in one direction in the direction of a neutral position, wherein the drive device (11) preferably has a second spring (38), which pushes the electric motor (12) from a second state rotated in the other direction in the direction of the neutral position.

10. The aircraft sliding door (1) according to any one of claims 7 to 9, characterised in that the device (39) for detecting the torque overrun of the electric motor (12) comprises a sensor (40), which detects a rotation of the electric motor (12) due to the torque overrun.

11. The aircraft sliding door (1) according to claim 10, characterised in that the device (39) for detecting the torque overrun of the electric motor (12) comprises a triggering element (41) connected in a rotationally fixed manner to the electric motor (12), which triggers the sensor (40) when the electric motor (12) is rotated due to the torque overrun.

12. The aircraft sliding door (1) according to any one of claims 7 to 11, characterised in that the drive device (11) comprises a control unit (42), which switches the electric motor (12) to a de-energised state when the blocked state of the door leaf (5) is detected.

13. The aircraft sliding door (1) according to any one of claims 1 to 12, characterised in that the spindle (13) comprises a gear ratio with which a complete rotation of the spindle (13) causes a movement of the door leaf (5) in the closing and opening direction respectively of less than 30 mm, in particular from 5 mm to 15 mm.

14. The aircraft sliding door (1) according to any one of claims 1 to 13, characterised in that a first limit switch (43) is provided for detecting the opened position of the door leaf (5) and a second limit switch (44) is provided for detecting the closed position of the door leaf (5).

15. An aircraft comprising: an interior with a first spatial area and with a second spatial area, an aircraft sliding door (1) according to any one of claims 1 to 14, which is arranged between the first spatial area and the second spatial area in the interior.