Wheelchair-accessible lift car

Abstract

The present invention relates to an elevator car for a passenger elevator. More particularly, the present invention relates to an elevator car (10) for a passenger elevator, the elevator car comprising a floor (12), at least one wall element (14, 16), an access opening (18, 20) and a car door, which can close the access opening, wherein: the floor (12) extends within a floor area and is delimited by a plurality of edges, such that four edges are located on the sides of a rectangle and the other edges are located within the rectangle so that the floor (12) forms two blunt corners in the region of the other edges, namely a first blunt corner (22) and a second blunt corner (24); the car door can be moved in the closing direction from an open position to a closed position and is in the form of a sliding door having a first leaf (42) and a second leaf (44), the first leaf (42) having a front edge oriented in the closing direction and an opposite rear edge, the second leaf (44) having a front edge oriented in the closing direction and an opposite rear edge, and the first leaf (42) moving beyond the second leaf (44) in the closing direction; the second leaf (44) adjoining the first blunt corner (22) when the car door is closed; the elevator car being characterized in that, when the car door is open, at least the rear edge of the first leaf (42) does not lie over the floor of the elevator car (10) but lies within the rectangle.

Description

[0001] Wheelchair-accessible elevator

[0002] Field of invention

[0003] The present invention relates to an elevator car for a passenger elevator. In particular, the car is intended to be optimized for use by wheelchair users.

[0004] Background of the invention

[0005] European patent EP 1 591 401 B1 discloses a typical elevator car. It is constructed as a cuboid on a rectangular base. It has only a single door at the front. The car is supported by a car frame that surrounds it on both side walls. This car frame, in turn, supports a transverse beam that runs across the car ceiling. Furthermore, rollers and a corresponding roller support beam are provided on the car ceiling. This car design is certainly practical for a typical elevator shaft, but it requires a large shaft and, due to the roller drive, usually relies on a complex and heavy drive unit above the shaft. Elevator access cannot be provided in these areas using frame elements.The present invention aims to offer a car lift and a corresponding cabin, which can be designed much more compactly and can also offer access from several sides.

[0006] European patent EP 2 516 314 B1 discloses another elevator car. It is a cuboid-shaped car with a rectangular base, which appears stable due to its rectangular floor frame and the corresponding roof frame. The car doors are guided at the top in a door guide rail and are supported at the bottom by a

[0007] CONFIRMATION COPY car door threshold. This design appears to allow for reliable door guidance. It is also quite typical for many cars. However, both the door guide rail and the car door threshold protrude significantly beyond the car to the left and right (i.e., in the direction the doors open). Accordingly, a generously dimensioned elevator shaft is required. Such a solution seems less suitable for retrofitting a wheelchair accessible elevator. In any case, it requires a considerable amount of space.

[0008] Japanese patent application JP 2006151625 A2 discloses an elevator with a compact guide and drive unit. The elevator comprises a car on a square footprint. The elevator shaft is also square. Guide elements are provided to the left and right of the car. Additional drive and guide elements are provided behind the car. These include a counterweight that is guided along the rear wall of the elevator shaft. Overall, the design appears space-saving. However, the required shaft dimensions are significantly larger than the car dimensions. Only the front area of ​​the shaft, which also houses access doors, is free of technical components for drive and guidance. At the rear, the shaft must be considerably larger than the car, and large open spaces must also be provided in the shaft on the sides of the car.The present invention aims not only to offer a lift that is particularly suitable for wheelchair users, but also to create an even more compact lift. This is already taken into account in the cabin design.

[0009] Elevators, and especially passenger elevators like those cited in the prior art, are often designed to increase convenience and thus typically avoid climbing stairs. For people with disabilities, and especially wheelchair users, however, comfort is not the primary concern; rather, it's about enabling them to overcome heights. Wheelchair-accessible elevators therefore play a major role, and the demand for them is substantial. Meeting this demand is also largely limited by financial constraints. Therefore, there is continued interest in finding particularly efficient and affordable elevator solutions that are highly suitable for wheelchair users.

[0010] In this context, it should be borne in mind that architecturally, rectangular or square elevator shafts are generally designed. However, a rectangular elevator shaft is not particularly advantageous for a wheelchair user. Wheelchair users should generally be able to rotate around their longitudinal axis, for example, enter in one direction and then exit in the opposite direction after a 180-degree turn. The greater length of a rectangular elevator car along one axis is of no advantage in this regard. How easy it is to rotate around one's own axis is determined only by the direction of the shorter extension, while the space available in the other direction is useless, for example because although two wheelchairs could be accommodated one behind the other, their maneuverability would be too limited.

[0011] This object is achieved by an elevator car according to claim 1. Advantageous further developments are specified in the subclaims. The advantages are also achieved by a passenger elevator according to claim 12 and the associated subclaims.

[0012] Further description

[0013] An elevator car according to the present invention will comprise a floor, at least one wall element, an access opening, and a car door that can close the access opening. (Other elements are typically included.) The floor may consist of an upper floor, which supports a user and is typically stepped on by the user, and additional supporting floor elements arranged underneath. For the purposes of this invention, the floor is intended to encompass the entire accessible area defined by the outer surfaces of the side walls and the car doors.

[0014] The elevator car is to be installed in a rectangular shaft and, accordingly, has wall elements arranged along the rectangular edges. The elevator car will have at least one access opening that occupies part or the entire length of such a rectangular side. This access opening should be capable of being closed by a car door.

[0015] The floor is bounded by a multitude of edges. The geometry of the floor is such that four of the bounding edges are arranged along a rectangle, and the remaining edges are arranged within the rectangular area, in such a way that the floor forms at least two obtuse corners in the area of ​​the remaining edges, namely a first obtuse corner and a second obtuse corner. (If door thresholds are provided on the floor, these are considered part of the floor and should therefore be located within the rectangle.)

[0016] A useful floor can therefore be bounded by six edges, four of which are arranged along the sides of a rectangle and two of which are arranged so that they bridge the corners of the rectangle and are opposite each other.

[0017] It can also be useful if the base is bounded by eight edges, where four edges are arranged along the sides of a rectangle, and the remaining edges bridge the corners of the rectangle. In this case, it is useful if the four longest edges are those arranged on the sides of a rectangle. It is also useful if the opposite edges of the remaining edges are all the same length. In this case, it can be useful if one pair of edges is longer than the other. The longer pair of edges will then form the obtuse corners, i.e. the first obtuse corner and the second obtuse corner.

[0018] The car door should move between an open position, which allows access to the elevator car, and a closed position. In the closed position, access to the elevator car is blocked. From the open position, the car door moves along a closing direction to the closing position. The car is usually closed by a lateral displacement in the closing direction. The car door should be designed as a sliding door with a first leaf and a second leaf. The first leaf should be the "fast" leaf. Thus, the first leaf will move beyond the second leaf in the closing direction. The first leaf should have a leading edge oriented in the closing direction and an opposite trailing edge; the second leaf should also have a leading edge oriented in the closing direction and an opposite trailing edge. When the car door is closed, the second leaf should be adjacent to the first blunt corner.

[0019] According to the present invention, at least the trailing edge of the first door leaf should not be above the floor of the elevator car when the car is open. This means that the space outside the elevator car is also used for the movement of at least one of the car door leaves.

[0020] It is also practical if the trailing edge of the second panel is not above the floor of the elevator when the car door is open. Both the first panel of the car door and the second panel of the car door can therefore move completely or partially, or at least with their trailing edges, above the floor of the elevator car. The first panel and the second panel have a front edge oriented in the closing direction and an opposite trailing edge, as well as a vertical central axis located midway between the edges. It is certainly practical if not only the trailing edge, but even the central axis of the panels are not above the floor of the elevator when the car door is open.

[0021] At the same time, the trailing edge of the first panel (and preferably also the trailing edge of the second panel) should remain within the described rectangle defined by the car when the car is open. This car design saves space and allows for a compact shaft. Therefore, the corresponding elevator can be used and retrofitted in locations where conventional elevator designs would not fit, especially those with car doors.

[0022] Although the selected shape of the elevator car with two blunt corners is very advantageous for the construction of a space-saving elevator for wheelchair users, this shape has certain disadvantages for the arrangement of important elements, including the operating elements, but also the arrangement of the doors. Such disadvantages are overcome within the scope of the present invention.

[0023] It is practical if control elements are arranged in the area of ​​the first obtuse corner or in the area of ​​the second obtuse corner. Such control elements are in particular the elements with which the desired floor for transport can be entered. It is particularly practical if control elements with the same effect are provided one above the other, namely at a first height for standing persons and at a second (lower) height for wheelchair users. It is also practical if the car door comprises three leaves. The car door can open in two directions, so that the first leaf and the second leaf have a first opening direction and the third leaf in the opposite direction. For example, the first leaf and the second leaf can open to the right and the right leaf can open to the left.

[0024] It's especially advantageous if the third panel is designed to be shorter than the first and second panels. Since the third panel can't open toward the obtuse corner, it takes up less space than the first and second panels.

[0025] It is also useful if the cabin door comprises four wings, whereby the cabin door can open in two directions, so that the first wing and the second wing have a first opening direction and the third wing and the fourth wing have an oppositely oriented opening direction.

[0026] A suitable elevator car can have two guide lugs, with which it can be connected to guide rails in a suitable manner. More than two guide lugs and correspondingly more than two guide rails can also be used, but generally it is sufficient within the scope of the present invention if the elevator car has two guide lugs. For this purpose, the first guide lug can be arranged in the first obtuse corner and the second guide lug in the second obtuse corner. The use of the obtuse corners for the arrangement of the guide lugs has the advantage of resulting in a relatively short diagonal for better guidance. When reference is made here to a guide lug, it can generally refer to a suitable element for interacting with a guide rail, usually a mechanical element, which can, however, be designed as a female or a male element (the guide lugs are also often simply referred to as "guides").For example, the guide nose can be designed in the form of a groove that engages a guide rail. It may also be useful to use four guide noses, especially at different heights within the cabin, such as two near the roof and two near the floor (i.e., in the upper and lower 10% of the cabin height, respectively).

[0027] It has proven useful if, when the car door is open, at least the rear edge of the first leaf is moved behind the first guide lug. More precisely, when the leaf is moved in the opening direction (i.e., opposite to the closing direction), the rear edge of the leaf moves so far that the edge extends beyond the projection of the guide lug onto the inside of the door. This creates a kind of sandwich, with the guide lug enclosed between the car door and the elevator car, particularly the floor of the elevator car. This arrangement thus allows the guide rails to be brought particularly close to the car while simultaneously allowing the remaining space to be used for the movement of the car doors.

[0028] In this sense, it is also expedient if at least the first leaf of the car door has an inner side and an outer side, with the inner side facing the interior of the car when the car door is closed, and the inner side facing the first guide lug when the car door is open. A similar arrangement can be made for the second leaf. Therefore, it is also advantageous if, when the car door is open, the first guide lug is located between the inner side of the first leaf and the floor of the elevator car.

[0029] This can be provided in an analogous manner for the second guide nose, which is arranged in the second blunt corner.

[0030] The design of the elevator car is suitable for providing multiple access openings. For example, a first access opening and an opposite second access opening can be provided. It is also possible to provide a first access opening and a second access opening at right angles to each other. The basic geometric arrangement of the elevator car allows for access openings and corresponding car doors to be provided in four directions. In conventional elevator cars, it is generally necessary to provide significant portions of at least one side wall for operating elements and other devices. Since, within the scope of the present invention, such operating elements can be provided in the first obtuse corner or, alternatively or additionally, also in the second obtuse corner, all side walls of the elevator car are available for access openings and car doors.

[0031] It is also practical for the elevator car to have two car doors, each with two panels. It is advisable for the car doors to be positioned with their slower panels adjacent to the obtuse corners. This allows the space available at the obtuse corners to be used for two car doors.

[0032] Within the scope of the present invention, it is also of interest to provide a passenger elevator with an elevator car. Preferably, the elevator car, individually or in combination, has the features already described.

[0033] This concerns a passenger lift with a lift car, wherein the passenger lift has a lift shaft of substantially rectangular base area over which four shaft walls protrude, forming four shaft corners, and the lift car has four side walls which extend substantially parallel to the four shaft walls, wherein the lift car is spaced from the adjacent shaft corner in the region of a first corner and the lift car has a car door,wherein the car door is designed as a sliding door with a first leaf and a second leaf, the first leaf having a front edge oriented in the closing direction and an opposite rear edge and a vertical central axis lying centrally between the edges, and the second leaf having a front edge oriented in the closing direction and an opposite rear edge and a vertical central axis lying centrally between the edges, the first leaf moving beyond the second leaf in the closing direction, the second leaf being adjacent to the first corner when the car door is closed, characterized in that the central axis of the first leaf projects beyond the elevator car when the car door is open.

[0034] A passenger lift is also suitable in which a first guide rail is provided in one shaft corner and a second guide rail is provided in the opposite shaft corner, wherein when the car door is opened, at least the rear edge of the first leaf is displaced in the areas between the first guide rail and the adjacent shaft corner.

[0035] Further features, as well as advantages of the invention, will become apparent from the following drawings and the accompanying description. In the figures and the accompanying descriptions, features of the invention are described in combination. However, these features can also be encompassed by an inventive subject matter in other combinations. Each disclosed feature is therefore also to be considered as disclosed in technically reasonable combinations with other features. Some of the figures are slightly simplified and schematic.

[0036] Fig. 1 shows a sectional view (floor plan view) of an elevator car according to the invention

[0037] Fig. 2 shows a corresponding floor plan view of the cabin with a surrounding elevator shaft Fig. 3 shows the cabin in the elevator shaft with open doors

[0038] Fig. 4 shows an enlarged sectional view of a corner area of ​​the car and the elevator shaft

[0039] Fig. 1 shows a sectional view of the cabin 10. It is a horizontal section, the view goes from top to bottom to the floor 12 of the cabin 10, so that the whole can be described as a floor plan view.

[0040] The cabin floor supports the user and, if applicable, a load. Unlike typical simple elevators, especially retrofitted elevators, which offer options within a small footprint, especially for wheelchair users, this cabin is enclosed on all sides by side walls or cabin doors. This ensures increased safety and also makes it possible to achieve higher transport speeds within the framework of common safety regulations.

[0041] The floor 12 extends within a square, but is not square itself, as the corners of the square are not filled. The cabin 10 is bounded by a first side wall 14 and a second side wall 16. Opposite the side wall 14 is the first access opening 18. Opposite the second side wall 16 is the second access opening 20.

[0042] The side walls 14 and 16 converge at right angles to each other but do not touch. Rather, a first obtuse corner is provided in the area where the extensions of the side walls would intersect. Opposite, in the area where the directions of the access openings intersect, a second obtuse corner 24 is provided. A first acute corner 26 is provided between the side wall 16 and the first access opening 18. A second acute corner 28 is provided between the first side wall 14 and the second access opening 20.

[0043] The control element 30 is clearly visible as an important element of the cabin. Typically, two control elements are provided, one adapted to the standing height of a user and one adapted to a convenient operating height for a wheelchair user. A wall element 32 is provided between the first side wall and the second side wall 16. From the top view, a blunt corner appears between the side walls; from the user's interior view, simply another wall element 32 or panel is visible.

[0044] The obtuse corners are also called obtuse corners because the wall elements in the corners that are visible to the user are significantly shorter than the adjacent side walls. For example, within the scope of the present invention, it is generally expedient for a wall panel that spans a cabin corner to have a width that is 50% or less of the width of the shorter adjacent side wall, for example, only 40% or 30% or less.

[0045] A corresponding wall element 34 is arranged in the second obtuse corner 24. This can expediently support the control element 30. However, a different support, possibly independent of the wall element 34, can also be provided for the control element 30.

[0046] Wall elements are also provided in the aforementioned acute corners. In the first acute corner 26, this is wall element 36. In the second acute corner 28, this is wall element 38. It is expedient if the wall elements in the acute corners are even narrower than the wall elements in the obtuse corners. For example, within the scope of the present invention, it is generally expedient if the width of such a wall element in an acute corner is less than 80%, or even less than 50%, or even less than 30% of the width of a wall element in an obtuse corner.

[0047] The first access opening 18 is closed by a first car door 40. The first car door 40 consists of two wings, namely the first wing 42 and the second wing 44. The car door is designed to open toward the second obtuse corner 24. This means that the first wing 42 moves a greater distance than the second wing 44 when opening. The first wing 42 is therefore commonly referred to as the "fast" wing.

[0048] The second access opening 20 is closed by the second car door 46. This car door has three wings. The car door 46 comprises the third wing 48 and the fourth wing 50. It also comprises the fifth wing 52. Wings 48 and 50 should also open toward the second obtuse corner 24. Thus, the fourth wing 50 is the fast wing. The fifth wing 52 opens in the opposite direction, toward the second acute corner 28. The fifth wing 52 is significantly shorter than the third wing 48 and the fourth wing 50.

[0049] It is generally expedient within the scope of the present invention to use a cabin door with three wings, the third wing of which is less than half as wide or less than one-third as wide as the widest of the other two wings.

[0050] Fig. 2 shows the elevator car 10 in a view corresponding to Figure 1, but installed in an elevator shaft. For the sake of clarity, only the essential elements of the car 10 are shown; they again include the floor 12 and also the first car door 40 and the second car door 46.

[0051] The car 10 is surrounded by the first shaft wall 54 and the second shaft wall 56. Opposite the first shaft wall 54 are the third shaft wall 58 and the first shaft door 60. Opposite the second shaft wall 56 are the fourth shaft wall 62 and the adjacent second shaft door 64. The elevator car is suitable for various types of shafts; shown here is a shaft constructed with corner posts, depicting corner posts 66A, 66B, 66C, and 66D. These corner posts are arranged at the corners of a square, so that the shaft offers a square footprint. As explained, the floor 12 is not square, however, but is spaced from the corners of the shaft, especially in the corner areas.

[0052] In the obtuse corners of the cabin 10, there is therefore space for additional devices in the shaft. A first guide post 70 is provided, which is connected to the corner post 66D by a first connecting element 68. Opposite, the guide post 72 is provided, which is connected to the corner post 66B by the connecting element 74. The guide posts each offer (generally within the scope of this invention) at least one guide rail. They can consist solely of a guide rail (e.g., a flat iron) or comprise further elements, e.g., be designed as T-beams. Accordingly, the guide posts are frequently referred to simply as guide rails. However, it is advantageous if the guide posts are self-supporting elements, which at least do not require support from a shaft wall and also if the guide posts are supported on the shaft floor.

[0053] Fig. 3 shows the car with the elevator shaft surrounding it from the viewing direction chosen in Fig. 2. While the car is shown with closed car doors in Fig. 2, the open car doors are shown in Fig. 3. To simplify the view, the shaft doors, which are usually also provided, have been omitted. The first access opening 18 was opened for access by moving the leaves of the first car door, namely the first leaf 42 and the second leaf 44, towards the second blunt corner 24. The first leaf 42 covers the second leaf 44. The first leaf 42 faces outwards towards the shaft wall, while the second leaf 44 is oriented inwards towards the car. As can be seen, in this open position the leaves use the free space that exists between the car and the shaft walls (here in particular the third shaft wall 58).The wings 42 and 44 are thus shifted to an area behind the wall element 34. They are also shifted out of the area of ​​the cabin floor 12. The wings therefore use an area that lies outside the cabin but does not extend far into the shaft.

[0054] A corresponding solution is found in the area of ​​the second access opening 20. Here, the third wing 48 and the fourth wing 50 are shifted into the area of ​​the second obtuse corner 24, thus freeing the second access opening 20. These wings also utilize the free space behind the wall element 34 and are shifted so far that their inner sides point toward the guide post 70.

[0055] The free space in the second obtuse corner 24 is used by both car elements and elements of the elevator system. The more relevant car elements here are the car door panels and the control element 30. The other elements required for the technical operation of the elevator are the guide post 70 and the corresponding connecting element 68.

[0056] Moreover, this dual use is achieved in a very efficient manner. The door leaves are moved into the described free space until the guide post 70 is on the inside (i.e., on the side facing the car) of the door leaves. The fifth leaf 52 of this door is moved into the area of ​​the second pointed corner 28. It is now located behind the wall element 38. Even in the area of ​​the pointed corners, the free space between the car and the shaft can therefore be used for the door leaves, so that they can be moved into the open position in a favorable manner and free up the second access opening as completely as possible. It would also be conceivable for not only the car door leaves to use the free space in the obtuse corners, but also additional equipment in the car (such as additional control elements) or the shaft.In this respect, it would be possible to install additional guide rods in the area of ​​the sharp corners or even a shaft copying system with which the car height can be determined.

[0057] Fig. 4 shows an enlarged section of the shaft structure in the area of ​​the corner post 66D. Such a corner post can be designed as a profile post. This allows the shaft walls, such as the third shaft wall 58 and the fourth shaft wall 62, to be easily connected to the corner post 66D and supported by the corner posts. Corresponding wall sections can easily be made of metal, for example, aluminum, plastic, or even glass. They can be provided with suitable frames. Grooves can be provided for the corresponding connection. For a shaft post with a substantially square profile, suitable connecting elements will therefore extend at right angles.

[0058] Additional connecting elements can be provided between these connecting elements, for example, at a 45-degree angle. These additional connecting elements can serve to connect technical components for the shaft. For example, a groove extending at a 45-degree angle is provided here (not further designated), which accommodates the connecting element 68. This connecting element 68 supports the guide post 70.

[0059] This enlarged view highlights how the arrangement of corner posts and guide posts creates an area where door leaves can be moved into the open position. This area is indicated by the hatched area 76. Overall, it is clear how an elevator car and corresponding passenger lift can be constructed inexpensively and efficiently, offering many benefits for wheelchair users.

[0060] Reference list

[0061] 10 cabins

[0062] 12 Floor

[0063] 14 first side wall

[0064] 16 second side wall

[0065] 18 first access opening

[0066] 20 second access opening

[0067] 22 first blunt corner

[0068] 24 second blunt corner

[0069] 26 first sharp corner

[0070] 28 second sharp corner

[0071] 30 Control element

[0072] 32 wall element

[0073] 34 wall element

[0074] 36 wall element

[0075] 38 Wahdelement

[0076] 40 first cabin door

[0077] 42 first wing

[0078] 44 second wing

[0079] 46 second cabin door

[0080] 48 third wing

[0081] 50 fourth wing

[0082] 52 fifth wing

[0083] 54 first shaft wall

[0084] 56 second shaft wall

[0085] 58 third shaft wall

[0086] 60 first shaft door

[0087] 62 fourth shaft wall

[0088] 64 second shaft door

[0089] 66 corner posts

[0090] 68 Connecting element guide post guide post connecting element

Claims

Claims 1. Elevator car (10) for a passenger elevator, comprising a floor (12), at least one wall element (14, 16), an access opening (18, 20) and a car door which can close the access opening, wherein the floor (12) extends within a floor area and is bounded by a plurality of edges, such that four edges are arranged on the sides of a rectangle and the remaining edges are arranged within the rectangle, so that the floor (12) forms at least two obtuse corners in the area of ​​the remaining edges, namely a first obtuse corner (22) and a second obtuse corner (24), wherein the The elevator door can be moved in the closing direction from an open position to a closed position and is designed as a sliding door with a first leaf (42) and a second leaf (44), the first leaf (42) having a front edge oriented in the closing direction and an opposite rear edge, and the second leaf (44) having a front edge oriented in the closing direction and an opposite rear edge, and the first leaf (42) moving beyond the second leaf (44) in the closing direction, the second leaf (44) being adjacent to the first obtuse corner (22) when the elevator door is closed, characterized in that at least the rear edge of the first leaf (42) is not above the floor of the elevator car (10) when the elevator door is open, but lies within the rectangle.

2. Elevator cabin (10) according to the preceding claim, wherein the rear edge of the second wing (44) is also not above the floor (12) of the elevator cabin (10) when the cabin door is open, but is within the rectangle.

3. Elevator cabin (10) according to one of the preceding claims, wherein the floor (12) extends within a floor area and This is bounded by six edges, such that four edges are arranged on the sides of a rectangle and two edges are arranged opposite each other, bridging the corners of the rectangle and forming the first obtuse corner (22) and the second obtuse corner (24). Elevator car (10) according to one of the preceding claims, wherein operating elements (30) for the elevator car (10) are provided at a first height and functionally equivalent operating elements (30) are provided at a second height in the region of the first obtuse corner (22) or the second obtuse corner (24), the second height being lower than the first height. Elevator car (10) according to one of the preceding claims, wherein the sliding door comprises a first leaf (42), a second leaf (44) and a third leaf (48) and the closing direction of the third leaf (48) is oriented opposite to the closing direction of the first leaf (42) and the second leaf (44).Elevator cabin (10) for a passenger elevator according to one of the preceding claims, comprising two guide lugs that can each interact with guide rails, wherein a first guide lug is arranged in the first obtuse corner (22) and a second guide lug is arranged in the second obtuse corner (24), wherein, when the cabin door is open, at least the trailing edge of the first wing (42) is displaced behind the first guide rail in the opening direction. Elevator cabin (10) according to the preceding claim, comprising the first wing (42) having an inner and an outer side, wherein the inner side faces the interior of the cabin when the cabin door is closed and the inner side faces the first guide lug when the cabin door is open. Elevator cabin (10) according to the preceding claim, comprising the following: when the cabin door is open, the inner side faces the interior of the cabin when projected onto a horizontal plane. The first guide lug is located between the inside of the first wing and the floor (12) of the elevator car. Elevator car (10) for a passenger elevator according to one of the preceding claims, which has a first access opening (18) and a first car door (40) which can close the first access opening (18) and which has a second access opening (20) and a second car door (46) which can close the second access opening (20). Elevator car (10) according to the preceding claim, wherein the first car door (40) is designed as a sliding door with a first wing (42) and a second wing (44), and the first wing (42) has a closing-oriented leading edge and an opposite trailing edge, and the second wing (44) has a closing-oriented leading edge and an opposite trailing edge, and the first wing (42) moves beyond the second wing (44) in the closing direction.wherein the second wing (44) adjoins the first obtuse corner (22) when the cabin door is closed, and wherein the second cabin door (46) is designed as a sliding door with a third wing (48) and a fourth wing (50), and wherein the third wing (48) has a front edge oriented in the closing direction and an opposite rear edge, and the fourth wing (50) has a front edge oriented in the closing direction and an opposite rear edge, and the third wing (48) moves beyond the fourth wing (50) in the closing direction, the fourth wing adjoining the second obtuse corner (24) when the cabin door is closed. Passenger elevator with an elevator car (10), wherein the passenger elevator has a hoistway of substantially rectangular base area, over which four shaft walls (54, 56, 48, 62) project, forming four shaft corners, and the elevator car has four side walls which extend in the essentially parallel to the four shaft walls, wherein the elevator car (10) is spaced away from the adjacent shaft corner in the area of ​​a first corner and the elevator car has a car door, wherein the car door is designed as a sliding door with a first leaf and a second leaf and the first leaf (42) has a closing-oriented front edge and an opposite rear edge and a vertical central axis located midway between the edges and the second leaf (44) has a closing-oriented front edge and an opposite rear edge and a vertical central axis located midway between the edges and the first leaf (42) moves beyond the second leaf (44) in the closing direction, wherein the second leaf (44) is closed against the first leaf when the car door is closed;a blunt corner (22), characterized in that the central axis of the first wing (42) projects beyond the elevator car (10) when the car door is open. Passenger elevator according to the preceding claim, wherein a first guide rail is provided in one shaft corner and a second guide rail is provided in the opposite shaft corner, wherein, when the car door is opened, at least the trailing edge of the first wing (42) is displaced in the areas between the first guide rail and the adjacent shaft corner.

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