Door system for a lift car, lift system and method for evacuating a lift car

Abstract

The invention relates to a door system (5) for a lift car (3), comprising: at least one door leaf (6a, 6b) for closing at least a partial region of a car opening (4) of the lift car (3); and a bearing device (10), which is designed to mount the door leaf (6a, 6b) on the lift car (3) so as to be displaceable in the direction of a displacement axis (8) between an open position, in which the door leaf (6a, 6b) releases the partial region, and a closed position, in which the door leaf (6a, 6b) closes the partial region, and additionally so as to be rotatable about a rotation axis (9a, 9b), so that the door leaf (6a, 6b), when it is displaced into the closed position and / or into an intermediate position between the open and the closed position, can be rotated into an emergency open position, in which the car opening (4) is released to such an extent that the lift car (3) can be evacuated via the car opening (4).

Description

[0001] Door system for an elevator car, elevator system and method for evacuating an elevator car

[0002] The present invention relates to a door system for an elevator car. Furthermore, the invention relates to an elevator installation comprising at least one elevator car equipped with such a door system, as well as to a method for evacuating an elevator car equipped with such a door system.

[0003] An elevator car of an elevator system, such as those used to transport people or goods in buildings, may comprise a car opening and a sliding door mechanism that opens or closes the car opening to the respective floors of the building by horizontally sliding one or more door leaves. In addition to the car opening, the elevator car may have a separate emergency opening through which the elevator car can be evacuated in an emergency.

[0004] US 9,284,159 B2 shows an example of a separate side emergency opening that can be closed via a pivoting door.

[0005] In versions without such an emergency opening, evacuation can be achieved via the car opening. However, in the event of a malfunction, the elevator car may become stuck at a point in the elevator shaft where the door leaf(s) cannot be opened or cannot be opened far enough, for example, because the sliding path is blocked by a support in the elevator shaft.

[0006] There may therefore be a need for an improved door system for an elevator car that enables evacuation through the car opening even if sliding open the door panel(s) is not possible for some reason. Furthermore, there may be a need for a corresponding elevator system and method for evacuating an elevator car.

[0007] These needs can be met by the subject matter of the independent claims. Advantageous embodiments are set forth in the dependent claims, the following description, and the accompanying figures.

[0008] A first aspect of the invention relates to a door system for an elevator car that is movable in an elevator shaft between multiple floors and has at least one car opening. The door system comprises at least one door leaf for closing at least a partial area of ​​the car opening and a mounting device designed to mount the door leaf on the elevator car so that it can be displaced in the direction of a displacement axis between an opening position, in which the door leaf exposes the partial area, and a closing position, in which the door leaf closes the partial area, and additionally rotatably mounted about a rotation axis. Such that the door leaf, when moved into the closing position and / or into an intermediate position between the opening and closing positions, can be rotated into an emergency opening position in which the car opening is opened sufficiently for the elevator car to be evacuated via the car opening.

[0009] This allows, with relatively little design effort, the car opening to be at least partially opened (and without the use of destructive force) even if the door leaf's movement is blocked for any reason, such as the elevator car stopping at an unfavorable height on a beam traversing the elevator shaft. This could be, for example, a retaining clip on the guide rail.

[0010] A second aspect of the invention relates to an elevator system. The elevator system comprises an elevator shaft and at least one elevator car, which is movable in the elevator shaft between several floors and has at least one car opening. The elevator car comprises at least one door system, as described above and below, wherein the door leaf is displaceable via the bearing device on the elevator car in the direction of the displacement axis between the open and closed positions and is additionally mounted for rotation about the rotation axis.

[0011] A third aspect of the invention relates to a method for evacuating an elevator car of an elevator system, as described above and below. The method comprises at least the following step: if the elevator car is to be evacuated via the car opening and the door leaf is displaced into the closed position and / or an intermediate position between the open and closed positions (and, for example, blocked therein): rotating the door leaf about its axis of rotation into an emergency opening position in which the car opening is sufficiently open that the elevator car can be evacuated via the car opening.

[0012] Features of the method can also be features of the door system described above and below and / or the elevator system described above and below, and vice versa. Without limiting the scope of the invention in any way, embodiments of the invention can be considered to be based on the ideas and findings described below.

[0013] The car opening can be a main opening of the elevator car, through which passengers can enter the elevator car from a floor during normal operation of the elevator system and / or exit to a floor. The car opening can, for example, be opposite a door opening in a side wall of the elevator shaft when the elevator car regularly stops at a floor. The elevator car can also have several car openings, for example, opposite one another, whereby each car opening can be combined with a door system as described above and below.

[0014] For example, the rotation axis can be orthogonal to the displacement axis. For example, the rotation axis can be a vertical axis when the elevator car is in operation.

[0015] For example, the rotation axis can be moved together with the door leaf in the direction of the sliding axis (see also below).

[0016] The rotation axis can intersect the sliding axis or be offset laterally, for example, horizontally, from the sliding axis. The orientation of the rotation axis relative to the sliding axis can remain constant when the door leaf is moved between the open and closed positions. However, a change in the lateral offset of the rotation axis relative to the sliding axis is also conceivable, depending on the door leaf's displacement.

[0017] The door leaf can be mounted so that it can rotate around a single axis. However, designs in which the door leaf can rotate or pivot around two or more axes are also conceivable.

[0018] For example, the door leaf can comprise several movable door leaf segments, each of which can additionally be mounted so as to rotate about its own axis of rotation. Such an embodiment would allow a door leaf that is not completely closed, in particular a door leaf halfway between the open and closed positions, to be rotated about its axis of rotation into an emergency opening position. According to one embodiment, the mounting device can comprise at least one folding part and at least one sliding part. The sliding part can be mounted on the elevator car so as to be movable in the direction of the displacement axis between the open and closed positions, wherein the folding part can be mounted on the sliding part so as to rotate about the axis of rotation, such that the folding part can be moved together with the sliding part. Furthermore, the door leaf can be fastened to the folding part so that the door leaf can rotate together with the folding part.

[0019] The folding and / or sliding part can be designed in one or more parts, for example in the form of an elongated profile or a strip.

[0020] The sliding part can, for example, be designed as a guide shoe for guiding in a corresponding guide rail, which can be arranged above and / or below the cabin opening.

[0021] The folding part can be attached to the door leaf as a separate component, for example, by screwing and / or welding. However, the folding part can also be integrated into the door leaf, meaning both can be different sections of one and the same, one-piece component.

[0022] According to one embodiment, the folding part can be elongated and rotatably connectable to the sliding part at its first end. For example, the longitudinal axis of the (elongated) folding part can run horizontally when the elevator car is in operation. It is possible for the longitudinal axis of the folding part to run parallel to the sliding axis in an initial position and to form an obtuse, acute, or right angle with the sliding axis in the emergency opening position.

[0023] Likewise, for example, the sliding part can be elongated and have a longitudinal axis that runs horizontally when the elevator car is in operation. The alignment of the sliding part's longitudinal axis to the sliding axis can be constant or vary when moving between the open and closed positions. This allows the storage device to be implemented with minimal design effort. The door system can therefore be easily retrofitted.

[0024] According to one embodiment, the folding part can be rotatably connected to the sliding part via a bearing pin that engages partially with the folding part and partially with the sliding part. For example, the longitudinal axis of the bearing pin can be aligned with the rotation axis when the door system is assembled. Such a bearing is robust and allows for easy assembly and disassembly of the door system. Alternatively or additionally, the folding part can be rotatably mounted via at least one hinge.

[0025] According to one embodiment, the folding part can be lockable to the sliding part, whereby rotation of the folding part about the rotation axis is prevented when the folding part is locked and permitted when the folding part is unlocked. This prevents the folding part, and thus the door leaf, from being accidentally rotated into the emergency opening position.

[0026] According to one embodiment, the folding part can be locked via at least one locking bolt on the sliding part. The locking bolt, in the locked state, partially engages the folding part and partially engages the sliding part. In the unlocked state, the locking bolt does not engage the folding part, the sliding part, or neither the folding part nor the sliding part. The locking bolt can engage a corresponding locking receptacle on the folding and / or sliding part, for example, in the form of a locking opening. Accordingly, the folding part can be unlocked by moving the locking bolt out of the locking receptacle. The locking and / or unlocking can be done manually and / or automatically.

[0027] According to one embodiment, the locking bolt can engage a second end of the folding part in the locked state. The folding part can extend, for example, across the entire or a large part of the width of the door leaf, where "width" can be understood as the horizontal extension of the door leaf in the operational state of the elevator car. In other words, the bearing and locking bolts can be arranged at opposite ends of the door leaf—when viewed in the horizontal direction or in the direction of the width of the door leaf.

[0028] According to one embodiment, the locking bolt can be displaced, in particular slidable, between an unlocking position associated with the unlocked state and a locking position associated with the locked state. The locking bolt can be coupled to a spring mechanism, which can be designed to apply a restoring force acting in the direction of the locking position to the locking bolt coupled to the spring mechanism. For example, in the operational state of the elevator car, the locking bolt can have a longitudinal axis parallel or orthogonal to the longitudinal axis of the bearing bolt and / or the rotation axis. However, other orientations of the locking bolt are also possible. The unlocking and locking positions can be predetermined by a corresponding mechanical stop. The restoring force can be a spring force applied via at least one spring.Thus, the locking bolt can only be moved from the locked to the unlocked position by overcoming the restoring force. This prevents the folding part from being accidentally unlocked, for example, due to mechanical shock. The restoring force also causes the locking bolt to return to the locked position automatically when released, simplifying locking.

[0029] According to one embodiment, the locking bolt can be connected to an elongated traction mechanism and can be displaced or slid from the locking to the unlocking position by pulling on the traction mechanism connected to the locking bolt. The traction mechanism can be a flexible, sufficiently tensile-strength means, such as a rope or wire. When the door system is installed, the traction mechanism can be accessible from inside and / or outside the elevator car. For example, during normal operation of the elevator system, the traction mechanism can be suitably protected against unauthorized access. Such a locking or actuation mechanism is particularly low-maintenance and requires very little space.

[0030] According to one embodiment, the support device can further comprise a further folding part and a further sliding part. The further sliding part can be mounted on the elevator car so as to be displaceable in the direction of the displacement axis between the opening and closing positions, wherein the further folding part can be mounted on the further sliding part so as to be rotatable about the rotation axis, such that the further folding part can be displaced together with the further sliding part. Furthermore, the door leaf can be fastened to the folding part at its first end and to the further folding part at its second end, such that the door leaf can be rotated together with the folding part and the further folding part. For example, in the operational state of the elevator car—viewed in the vertical direction—the first end can be an upper end of the door leaf and the second end a lower end of the door leaf. The door leaf can, for example, rigidly connect the folding parts to one another.For this purpose, the door leaf can be designed to be torsionally rigid. As indicated above, the folding parts can at least partially enclose the door leaf in the horizontal direction. However, it is also possible for at least one of the folding parts to also at least partially enclose the door leaf in the vertical direction. For example, the folding parts can also surround the door leaf like a frame. This means that the door leaf can be mounted very stably with relatively little construction effort. In particular, the sliding part can close at least part of the cabin opening when closed. In particular, the sliding part, as an upper sliding part, can close an upper edge area of ​​the door opening in the emergency opening position, and / or the further sliding part, as a lower sliding part, can close a lower edge area of ​​the door opening in the emergency opening position.The fact that both the upper sliding part and the lower sliding part remain in the emergency opening position has the advantage that the locking bolt attached to it is easily accessible and that the sliding part can be designed to be stable. According to one embodiment, the door system can further comprise at least one further door leaf for closing a further partial area of ​​the car opening. Accordingly, the mounting device can further be designed to mount the further door leaf on the elevator car in the direction of the displacement axis between an opening position, in which the further door leaf exposes the further partial area, and a closing position, in which the further door leaf closes the further partial area, and / or to mount it rotatably about a further rotation axis parallel to the rotation axis.The door leaves can, for example, be a left and a right door leaf, whereby the car opening can be closed when the elevator car is in operation by moving the door leaves towards each other in opposite directions, or opened by moving the door leaves away from each other in opposite directions. It is also possible for both door leaves to be movable in the same direction from the same side of the car opening and / or towards the same side of the car opening. This design allows, for example, more than one door leaf to be rotated into the emergency opening position. This reduces the risk that the car opening cannot be opened wide enough in the event of an evacuation.

[0031] For example, the door leaves can rotate independently of each other around their axes of rotation.

[0032] According to one embodiment, the door leaf can first be unlocked by unlocking the hinged part and then rotated into the emergency opening position. The fact that the door leaf must first be unlocked prevents the door leaf from being accidentally opened during normal operation of the elevator system.

[0033] According to one embodiment, the door leaf can be pivoted into the elevator car when rotating into the emergency opening position. Thus, the door leaf can protrude largely into the elevator car in the emergency opening position. This can be advantageous in narrow elevator shafts. Additionally or alternatively, the door leaf can be rotated about a vertical axis as the rotation axis. Accordingly, the door leaf or leaves can be mounted so that they can be displaced along a horizontal axis as the displacement axis.

[0034] Preferably, a single door leaf can be rotated into the emergency opening position on its own. For telescopic sliding doors with multiple telescopically moving door leaves, preferably only the frontmost door leaf can be rotated into the emergency opening position. This is entirely sufficient to evacuate passengers from the cabin.

[0035] Advantageous embodiments of the invention are further explained below with reference to the accompanying drawings, wherein neither the drawings nor the explanations are to be interpreted as limiting the invention in any way.

[0036] Fig. 1 shows an elevator system according to an embodiment of the invention from above.

[0037] Fig. 2 shows an elevator car of the elevator system from Fig. 1 from the front.

[0038] The figures are merely schematic and not to scale. The same reference numerals designate the same or equivalent features in the various drawings.

[0039] Fig. 1 shows a plan view of an elevator system 1 with an elevator shaft 2 connecting several floors of a building. An elevator car 3, which can be moved between the floors, is arranged in the elevator shaft 2. The elevator car 3 has a car opening 4 that can be closed by a door system 5.

[0040] In this example, the door system 5 comprises a first door leaf 6a and a second door leaf 6b, which are mounted displaceably in opposite directions along a horizontal displacement axis 8, each between an opening position in which the cabin opening 4 is exposed by both door leaves 6a, 6b, and a closing position in which the cabin opening 4 is closed by both door leaves 6a, 6b.

[0041] In addition, the first door leaf 6a is mounted so as to be rotatable about a vertical first axis of rotation 9a and the second door leaf 6b is mounted so as to be rotatable about a vertical second axis of rotation 9b, in such a way that each door leaf 6a, 6b, when blocked in the closed position and / or in an intermediate position between the open and closed positions, for example due to a support running in the elevator shaft 2, can be rotated in an emergency into an emergency opening position in which the car opening 4 is released to such an extent that people can leave the elevator car 3 via the car opening 4.

[0042] For example, in the emergency opening position of one or both door leaves 6a, 6b, the cabin opening 4 can have a width of at least 20 cm, preferably at least 35 cm or at least 50 cm. The door leaf 6a, 6b can be rotatable, for example, by at least 20°, preferably by at least 40°, at least 60°, or at least 80°, about the rotation axis 9a or 9b.

[0043] The rotation axes 9a, 9b can intersect the displacement axis 8, as shown here. Alternatively, one or both of the rotation axes 9a, 9b can be offset horizontally from the displacement axis 8.

[0044] Each door leaf 6a, 6b can be pivoted at least partially into the elevator car 3, for example by rotating about its axis of rotation 9a or 9b.

[0045] Fig. 1 shows the two door leaves 6a, 6b in the closed position, with the opening and emergency opening positions of the door leaves 6a, 6b being indicated by dashed lines.

[0046] Fig. 2 shows a front view of the elevator car 3 with details of a bearing device 10, via which the two door leaves 6a, 6b are mounted on the elevator car 3 in a displaceable and rotatable manner.

[0047] In this example, the storage device 10 comprises, for each door leaf 6a, 6b, an upper folding part 11 and a lower folding part 12 as well as an upper sliding part 13 and a lower sliding part 14. The upper sliding parts 13 can each be mounted above the car opening 4 and the lower sliding parts 14 can each be mounted below the car opening 4 along the displacement axis 8 on the elevator car 3 so as to be displaceable between the opening and closing positions.

[0048] For example, the sliding parts 13, 14 can be designed as guide shoes, which can be guided by corresponding guide rails on the elevator car 3.

[0049] Each upper folding part 11 is, on the one hand, mounted on one of the upper sliding parts 13 for rotation about the rotation axis 9a or 9b, and, on the other hand, is attached to an upper end of one of the two door leaves 6a, 6b. Similarly, each lower folding part 12 is, on the one hand, mounted on one of the lower sliding parts 14 for rotation about the rotation axis 9a or 9b, and, on the other hand, is attached to a lower end of one of the two door leaves 6a, 6b.

[0050] The door leaves 6a, 6b are thus rotatable together with the respective folding parts 11, 12 about the respective rotation axis 9a, 9b, wherein the upper folding parts 11 are displaceable together with the respective upper sliding part 13 and the lower folding parts 12 are displaceable together with the respective lower sliding part 14.

[0051] The folding parts 11, 12 can, for example, be screwed and / or welded to the respective door leaf 6a, 6b. However, the folding parts 11, 12 can also be designed as correspondingly shaped sections of the respective door leaf 6a, 6b.

[0052] The folding parts 11, 12 and / or the sliding parts 13, 14 can be designed, for example, as elongated profiles, angles or strips.

[0053] In the example shown in Fig. 2, the folding parts 11, 12 each extend across the entire width of the respective door leaf 6a, 6b. However, the folding parts 11, 12 can also extend only partially in the width direction and / or at least partially in the height direction of the door leaves 6a, 6b, for example to form a frame around the respective door leaf 6a, 6b.

[0054] Each folding part 11, 12 can, for example, be rotatably mounted about the rotation axis 9a or 9b at its first end (here adjacent to a side edge of the cabin opening 4) via a bearing bolt 15 which extends from the folding part 11, 12 into the adjacent sliding part 13 or 14.

[0055] In addition, each folding part 11, 12 can be locked at its second end opposite the first end in the horizontal direction via a locking bolt 16 on the respective sliding part 13 or 14.

[0056] Fig. 2 shows the locking bolt 16 of each door leaf 6a, 6b in the locked state, in which the locking bolt 16 engages both in the respective folding part 11, 12 and in the respective sliding part 13, 14 and thus prevents rotation of the respective folding part 11, 12, ie of the respective door leaf 6a, 6b, into the emergency opening position.

[0057] For example, each locking bolt 16 can be arranged vertically between a

[0058] An unlocking position in which the locking bolt 16 is completely moved out of the respective folding part 11, 12 and a locking position in which the locking bolt 16 partially engages in the respective folding part 11, 12, can be displaceably mounted.

[0059] In addition, the locking bolt 16 can be coupled to a spring mechanism 17 which applies a restoring force to the locking bolt 16 acting in the direction of the locking position.

[0060] Each locking bolt 16 can optionally be connected to an elongated traction means 18, for example a rope or wire, wherein the locking bolt 16 can be moved into the unlocking position by pulling on the traction means 18.

[0061] As shown by way of example in Fig. 2, the two locking bolts 16 of the same door leaf 6a or 6b can be connected to different ends of the same traction mechanism 18. By pulling on the traction mechanism 18, both locking bolts 16 can thus be moved simultaneously into the unlocking position (when the traction mechanism 18 is released, the locking bolts 16 move back to the locking position on their own due to the restoring force).

[0062] Alternatively, the position of the bearing bolts 15 can be swapped with the position of the locking bolts 16.

[0063] Finally, it should be noted that terms such as "having," "comprising," etc., do not exclude other parts or steps, and indefinite articles such as "a" or "an" do not exclude a plurality. Furthermore, it should be noted that features or steps described with reference to one of the above embodiments may also be used in combination with features or steps described with reference to other of the above embodiments. Reference signs in the claims are not to be considered as limitations.

Claims

Claims 1. Door system (5) for an elevator car (3), wherein the elevator car (3) is movable in an elevator shaft (2) between several floors and has at least one car opening (4), wherein the door system (5) comprises: at least one door leaf (6a, 6b) for closing at least a part of the car opening (4);and a bearing device (10) configured to slidably mount the door leaf (6a, 6b) on the elevator car (3) in the direction of a displacement axis (8) between an opening position, in which the door leaf (6a, 6b) releases the partial area, and a closing position, in which the door leaf (6a, 6b) closes the partial area, and additionally to allow rotation about a pivot axis (9a, 9b), so that when the door leaf (6a, 6b) is moved into the closing position and / or into an intermediate position between the opening and closing positions, it can be rotated into an emergency opening position in which the car opening (4) is released to such an extent that the elevator car (3) can be evacuated via the car opening (4), wherein the bearing device (10) comprises at least one hinged part (11, 12) and at least one sliding part (13, 14);wherein the sliding part (13, 14) is slidably mounted on the elevator car (3) in the direction of the sliding axis (8) between the opening and closing positions, wherein the hinged part (11, 12) is rotatably mounted on the sliding part (13, 14) about the pivot axis (9a, 9b) so that the hinged part (11, 12) is slidable together with the sliding part (13, 14), and wherein the door leaf (6a, 6b) is attachable to the hinged part (11, 12) so that the door leaf (6a, 6b) is rotatable together with the hinged part (11, 12).

2. Door system (5) according to claim 1, wherein the hinged part (11, 12) is elongated and can be rotatably connected to the sliding part (13, 14) at its first end.

3. Door system (5) according to claim 1 or 2, wherein the hinged part (11, 12) is rotatably connected to the sliding part (13, 14) via a bearing bolt (15) which engages partly in the hinged part (11, 12) and partly in the sliding part (13, 14). Door system (5) according to any one of claims 1 to 3, wherein the hinged part (11, 12) can be locked to the sliding part (13, 14), wherein rotation of the hinged part (11, 12) about the axis of rotation (9a, 9b) is prevented in the locked state of the hinged part (11, 12) and is permitted in the unlocked state of the hinged part (11, 12). Door system (5) according to claim 4, wherein the hinged part (11, 12) can be locked to the sliding part (13, 14) by means of at least one locking bolt (16), wherein the locking bolt (16) engages partially in the hinged part (11, 12) and partially in the sliding part (13, 14) in the locked state and does not engage in the hinged part (11, 12) and / or the sliding part (13, 14) in the unlocked state. Door system (5) according to claim 5 referring backward to claim 2, wherein the locking bolt (16) engages in a second end of the hinged part (11, 12) in the locked state.Door system (5) according to claim 5 or 6, wherein the locking bolt (16) is displaceable between an unlocking position associated with the unlocked state and a locking position associated with the locked state; wherein the locking bolt (16) is coupled to a spring mechanism (17) configured to apply a restoring force acting in the direction of the locking position to the locking bolt (16) coupled to the spring mechanism (17). Door system (5) according to claim 7, wherein the locking bolt (16) is connectable to an elongated pull element (18) and can be displaced from the locking position to the unlocking position by pulling on the pull element (18) connected to the locking bolt (16).Door system (5) according to one of claims 1 to 8, wherein the bearing device (10) further comprises a further folding part (12) and a further sliding part (14); wherein the further sliding part (14) is displaceable on the elevator car (3) in the direction of the sliding axis (8) between the opening and closing positions. is storable, wherein the further folding part (12) is rotatable about the pivot axis (9a, 9b) on the further sliding part (14), so that the further folding part (12) together with the further sliding part (14) is slidable, and wherein the door leaf (6a, 6b) is attachable at its first end to the folding part (11) and at its second end to the further folding part (12), so that the door leaf (6a, 6b) together with the folding part (11) and the further folding part (12) is rotatable.Door system (5) according to one of the preceding claims, further comprising: at least one further door leaf (6b) for closing a further partial area of ​​the cabin opening (4); wherein the bearing device (10) is further configured to mount the further door leaf (6b) on the elevator cabin (3) in the direction of the displacement axis (8) between an opening position in which the further door leaf (6b) releases the further partial area and a closing position in which the further door leaf (6b) closes the further partial area, slidably and / or rotatably about a further rotation axis (9b) parallel to the rotation axis (9a).Elevator system (1) comprising: an elevator shaft (2); and at least one elevator car (3) which is movable in the elevator shaft (2) between several floors and has at least one car opening (4); wherein the elevator car (3) comprises at least one door system (5) according to one of the preceding claims, wherein the door leaf (6a, 6b) is displaceable on the elevator car (3) in the direction of the displacement axis (8) between the opening and closing positions via the bearing device (10) and is additionally rotatably mounted about the pivot axis (9a, 9b).Method for evacuating an elevator car (3) of an elevator system (1) according to claim 11, wherein the method comprises: when the elevator car (3) is to be evacuated via the car opening (4) and the door leaf (6a, 6b) is moved into the closed position and / or an intermediate position between the open and closed positions: rotating the door leaf (6a, 6b) about its axis of rotation (9a, 9b) into an emergency opening position in which the car opening (4) is released to such an extent that the elevator car (3) can be evacuated via the car opening (4). A method according to claim 12, wherein the elevator car (3) comprises the door system (5) according to claim 5; wherein the door leaf (6a, 6b) is first unlocked by unlocking the hinged part (11, 12) and then rotated into the emergency opening position. A method according to claim 12 or 13, wherein the door leaf (6a, 6b) is pivoted into the elevator car (3) when rotated into the emergency opening position; and / or wherein the door leaf (6a, 6b) is rotated about a vertical axis as the axis of rotation (9a, 9b).

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