Barrier-free elevator car

Abstract

The invention relates to an elevator car for a passenger elevator. More specifically, the invention relates to an 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 capable of closing the access opening, the floor (12) extending in the floor region and being delimited by a plurality of edges such that four edges lie on the sides of a rectangle and the other edges lie in the rectangle, at least two wide corners, namely a first wide corner (22) and a second wide corner (24), are formed in the area of the other edges of the base plate (12); the car door can be moved in a closing direction from an open position into a closed position and is in the form of a sliding door having a first leaf (42) with a front edge oriented in the closing direction and an opposite rear edge and a second leaf (44) with a front edge oriented in the closing direction and an opposite rear edge, the first leaf (42) moves beyond the second leaf (44) in the closing direction; the second leaf (44) is adjacent to the first wide corner (22) when the car door is closed; characterized in that when the car door is opened, the rear edge of at least the first leaf (42) is not located above the floor of the elevator car (10), but within the rectangle.

Description

Technical Field

[0001] The present invention relates to an elevator car for a passenger elevator. In particular, the car is to be optimized for use by wheelchair users. Background Art

[0002] European patent EP 1 591 401 B1 discloses a typical elevator car. The car is constructed as a cube on a rectangular base. Only a single door is provided at the front. The car is supported by a car frame, which surrounds the car at two side walls. The car frame in turn supports a crossbeam extending across the car roof. In addition, rollers and corresponding roller support beams are provided on the car roof. This car construction is of course suitable for typical elevator shafts, but requires a large shaft and, due to the roller drive, usually relies on a complex and heavy drive unit above the shaft. Frame elements cannot be used to provide elevator access in these areas. The object of the present invention is to provide an elevator and a corresponding car, which are significantly more compact and can also provide access from several sides.

[0003] European patent EP 2 516 314 B1 discloses another elevator car. It discloses a cubic car on a rectangular base, which appears stable due to its rectangular floor frame and corresponding top frame. The car door is guided at the top in door guides and supported at the bottom by the car door sill. This construction seems to allow the door to be guided reliably. This is also very typical in many cars. However, both the door guides and the car door sill protrude significantly beyond the car to the left and to the right (i.e. in the opening direction of the door). Therefore, a generously sized elevator shaft is required. This solution does not seem to be very suitable for retrofitting a faulty elevator. In any case, it requires a lot of space.

[0004] Japanese patent application JP 2006151625 A2 discloses an elevator with a compact guide and drive unit. The elevator comprises a car on a square base. The elevator shaft is also square. Guide elements are arranged on the left and right of the car. Further drive and guide elements are arranged behind the car. The elevator also comprises a counterweight, which is guided on the rear wall of the elevator shaft. Overall, this construction appears to save space. However, the required shaft dimensions are significantly larger than the car dimensions. Only the front area of ​​the shaft, which is also provided with an access door, is free of technical components for drive and guidance. On the rear side, the shaft must be much larger than the car, and large gaps must also be provided in the shaft on the sides of the car. The object of the present invention is not only to provide an elevator that is particularly suitable for wheelchair users, but also to provide an even more compact elevator. This has been taken into account in the car construction.

[0005] Elevators, in particular passenger elevators (such as those in the cited prior art), are used in many places to increase convenience, thereby generally avoiding the need to climb stairs. However, especially for disabled people and wheelchair users, it is not about comfort, but about being able to overcome heights. In this respect, barrier-free elevators play a major role, and the demand for them is considerable. Meeting this demand is also limited to a large extent by the limited available financial resources. As a result, there is a continuous interest in finding particularly efficient and cost-effective elevator solutions that are highly suitable for wheelchair users.

[0006] In this context, it should be remembered that rectangular or square elevator shafts are often used for architectural purposes. However, a rectangular elevator shaft is not particularly advantageous for a wheelchair user. Usually, a wheelchair user should be able to turn around its longitudinal axis, for example enter in one direction and then leave forward again in the opposite direction after turning 180 degrees. The greater length of a rectangular elevator car along one axis is disadvantageous here. The ease of turning around the axis is determined only by the direction of the shorter extension, while the space provided in the other direction is useless, for example also in the sense that although two wheelchairs could be accommodated one after the other, their maneuverability would be too limited.

[0007] This problem is solved by an elevator car according to claim 1. Advantageous developments are given in the dependent claims. These advantages are also achieved by a passenger elevator according to claim 12 and the associated dependent claims. Summary of the invention

[0008] The elevator car according to the invention has a floor, at least one wall element, an access opening and a car door which can close the access opening. (Usually, further elements are included).

[0009] The floor may comprise an upper floor supporting and typically walked upon by a user, and additional supporting floor elements arranged below it.In the context of the present invention, the floor is intended to encompass the entire area defined by the side walls and the outer surfaces of the car doors.

[0010] The elevator car will be installed in a rectangular shaft and therefore have wall elements arranged along the edges of the rectangle. The elevator car will have at least one entrance opening which occupies a part of such a rectangular side or even the entire length of such a rectangular side. The entrance opening should be closable by a car door.

[0011] The bottom plate is defined by a plurality of edges. The bottom plate has a geometric shape such that four of the defining edges are arranged along a rectangle and the remaining edges are arranged within the rectangular area, so that the bottom plate forms at least two wide corners in the area of ​​the remaining edges, namely a first wide corner and a second wide corner. (If the thresholds are provided on the bottom plate, these thresholds are part of the bottom plate and should therefore be located within the rectangle).

[0012] Thus, an advantageous base plate may be defined by six edges, of which four edges are arranged along the sides of the rectangle and two edges are arranged such that they bridge the corners of the rectangle and are opposite each other.

[0013] It is also advantageous that the base plate is defined by eight edges, wherein four edges are again arranged along the side of the rectangle, and the remaining edges bridge the corners of the rectangle respectively. Here, it is advantageous that the four longest edges are the edges arranged on the side of the rectangle. It is also advantageous that in the remaining edges, the opposite edges have the same length respectively. It is advantageous that a pair of edges is longer than another pair of edges. Then, a longer pair of edges will form a wide angle portion, that is, a first wide angle portion and a second wide angle portion.

[0014] The car door is intended to move between an open position and a closed position, in which the elevator car can be entered. In the closed position, access to the elevator car is blocked. The car door moves from the open position in a closing direction to close. Typically, the car is closed by a lateral movement in the closing direction. The car door will be formed as a sliding door having a first leaf and a second leaf. The first leaf should be a "fast" leaf. This means that the first leaf will move in the closing direction beyond the second leaf. The first leaf should have a front edge oriented in the closing direction and an opposite rear edge, and the second leaf should also have a front edge oriented in the closing direction and an opposite rear edge. When the car door is closed, the second leaf should be adjacent to the first wide corner portion.

[0015] According to the invention, when the car is open, the rear edge of at least the first leaf should not be above the floor of the elevator car. This means that the space outside the elevator car is also used for the movement of at least one leaf of the car door.

[0016] Also advantageously the rear edge of the second leaf is not above the floor of the elevator when the car door is opened. Therefore, the first leaf of the car door and the second leaf of the car door can be moved completely or partially, but at least using their rear edges, on the floor of the elevator car.

[0017] The first leaf as well as the second leaf have a front edge oriented in the closing direction and an opposite rear edge and a vertical center axis located in the center between the edges. This is quite practical if not only the rear edge but also the center axis of the leaf is not above the floor of the elevator when the car door is open.

[0018] At the same time, when the car is open, the rear edge of the first leaf (and preferably also the rear edge of the second leaf) should remain within the rectangle defined by the car. Such a car construction saves space and allows a compact shaft to be provided. Thus, the corresponding elevator can be used and retrofitted in places where there is no space for conventional elevator constructions, especially elevators with car doors.

[0019] Although the chosen shape of an elevator car with two wide corners is very advantageous for constructing a space-saving elevator for wheelchair users, this shape has certain disadvantages with regard to the arrangement of important elements, including control elements, and the arrangement of doors. The present invention overcomes these disadvantages.

[0020] It is advantageous if the control element is arranged in the region of the first wide corner or in the region of the second wide corner. Such a control element can in particular be an element which inputs the desired floor for transport. It is particularly advantageous if identically acting control elements are arranged one above the other, i.e. at a first height for a standing person and at a second (lower) height for a wheelchair user.

[0021] It is also advantageous that the car door comprises three leaves, whereby the car door can be opened in two directions, so that the first and second leaves have a first opening direction and the third leaf has an oppositely directed opening direction. For example, the first and second leaves can be opened to the right, while the right leaf can be opened to the left.

[0022] It is particularly advantageous that the third leaf is constructed shorter than the first leaf and the second leaf. Since the third leaf cannot be opened toward a wide corner, it occupies a smaller space than the first leaf and the second leaf.

[0023] It is also advantageous if the car door comprises four leaves, whereby the car door can be opened in two directions, such that the first leaf and the second leaf have a first opening direction and the third leaf and the fourth leaf have oppositely directed opening directions.

[0024] An advantageous elevator car may have two guide lugs, through which the guide lugs may be appropriately connected to the guide rails. It is also possible to use more than two guide lugs and correspondingly more than two guide rails, but in the context of the present invention, it is usually sufficient for the elevator car to have two guide lugs. For this purpose, the first guide lug may be arranged in the first wide angle portion, and the second guide lug may be arranged in the second wide angle portion. Using the wide angle portion to arrange the guide lugs has the following advantages: a relatively short diagonal is generated for better guidance. When the term "guide lug" is used herein, it may generally refer to an advantageous element for interacting with the guide rail, typically a mechanical element, but it may be specifically implemented as a concave element or a convex element (the guide lug is also often simply referred to as a "guide"). For example, the guide lug may be constructed in the form of a groove around the guide rail. It may also be useful to use four guide lugs, particularly at different heights of the car, such as two guide lugs close to the top and two guide lugs close to the floor (i.e., 10% above or below the car height).

[0025] It has proven to be advantageous if at least the rear edge of the first leaf moves behind the first guide lug when the car door is opened. More precisely, this means that 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 it moves beyond the projection of the guide lug on the inner side of the door. In this way, a sandwich construction is created, i.e. the guide lug is enclosed between the car door and the elevator car, in particular the floor of the elevator car. This arrangement therefore allows the guide rail to be brought particularly close to the car while allowing spare space for moving the car door.

[0026] With this in mind, it is also advantageous if at least a first leaf of the car door has an inner side and an outer side, wherein the inner side faces the interior of the car when the car door is in the closed position, and the inner side faces the first guide lug when the car door is in the open position. This can be provided correspondingly for the second leaf. It is therefore also advantageous if, when the car door is in the open position, the first guide lug is located between the inner side of the first leaf and the floor of the elevator car.

[0027] This can be provided in a similar manner for the second conductor lug arranged in the second wide angle portion.

[0028] The construction of the elevator car is suitable for providing several 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 geometrical arrangement of the elevator car allows access openings and corresponding car doors to be provided in four directions. In conventional elevator cars, it is usually necessary to provide a major part of at least one side wall for control elements and other equipment. Since in the context of the present invention such control elements can be arranged in the first wide angle section or alternatively or additionally also in the second wide angle section, all side walls of the elevator car can be used for access openings and car doors.

[0029] It is also advantageous that the elevator car has two car doors, each of which has two leaves. Advantageously, the slower leaves of the car doors are adjacent to the wide corners. Like this, the space provided in the wide corners can be used for two car doors.

[0030] In the context of the present invention, it is also of interest to provide a passenger elevator having an elevator car.Preferably, the elevator car has the features already described, alone or in combination.

[0031] The invention relates to a passenger elevator with an elevator car, wherein the passenger elevator has a travel shaft with a substantially rectangular base, above which four shaft walls protrude to form four shaft corners, and the elevator car has four side walls extending substantially parallel to the four shaft walls, wherein the elevator car is spaced apart from adjacent shaft corners in the region of a first corner, and the elevator car has a car door, wherein the car door is formed as a sliding door with a first leaf and a second leaf, and the first leaf has a front edge oriented in a closing direction and an opposite rear edge and a vertical center axis centrally located between the edges, and the second leaf has a front edge oriented in a closing direction and an opposite rear edge and a vertical center axis centrally located between the edges, and the first leaf is moved beyond the second leaf in the closing direction, wherein when the car door is closed, the second leaf is adjacent to the first corner, characterized in that when the car door is open, the center axis of the first leaf protrudes beyond the elevator car.

[0032] Also advantageous is a passenger elevator in which a first guide rail is arranged in one shaft corner and a second guide rail is arranged 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 area between the first guide rail and the adjacent shaft corner. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Additional features and advantages of the present invention can be found in the following drawings and associated descriptions. In the drawings and associated descriptions, features of the present invention are described in combination. However, these features may also be included in other combinations of the subject matter according to the present invention. Therefore, the individual disclosed features are also considered to be disclosed in a technically meaningful combination with other features. Some of the drawings are slightly simplified and schematic.

[0034] Figure 1 A cross-sectional view (plan view) of an elevator car according to the invention is shown; Figure 2 A corresponding plan view of the car with the surrounding elevator shaft is shown; Figure 3 showing a car in an elevator shaft with its doors open; and Figure 4 An enlarged sectional view of a corner area of ​​the car and the elevator shaft is shown. DETAILED DESCRIPTION

[0035] Figure 1 There is shown a cross-sectional view of the car 10. It is a horizontal section, the view being from top to bottom towards the floor 12 of the car 10 so that the whole can be described as a plan view.

[0036] The car floor supports the user and possibly also the load. In contrast to typical simple elevators, especially those that offer options in a small area, especially for wheelchair users, the car is surrounded on all sides by side walls or car doors. This ensures increased safety and also allows higher conveying speeds within the framework of current safety regulations.

[0037] The floor 12 extends within the square, but is not itself square because the corners of the square are not filled in. The car 10 is defined by a first side wall 14 and a second side wall 16. Opposite the side wall 14 is a first entry opening 18. Opposite the second side wall 16 is a second entry opening 20.

[0038] The side walls 14 and 16 extend toward each other at right angles, but do not touch. Instead, a first wide angle portion is provided in the region where the extensions of the side walls intersect. Instead, a second wide angle portion 24 is provided in the region where the directions of the entrance opening intersect. A first narrow angle portion 26 is provided between the side wall 16 and the first entrance opening 18. A second narrow angle portion 28 is provided between the first side wall 14 and the second entrance opening 20.

[0039] The control element 30 can be identified as an important element of the car. Typically, two control elements are also provided, one adapted to the user's standing height and one adapted to the proper operating height for a wheelchair user. A wall element 32 is provided between the first side wall and the second side wall 16. From a plan view, there is a wide corner between the side walls; from an internal view of the user, another wall element 32 or panel can be easily identified.

[0040] These wide corners are also referred to as short corners because the wall elements in the corners, which are recognizable to the user, are significantly shorter than the adjacent side walls. For example, in the context of the present invention, it is generally advantageous for the wall panels bridging the car corners to have a width that is shorter than 50% or less (e.g., only 40% or 30% or less) of the width of the adjacent side walls.

[0041] A wall element 34 is correspondingly arranged in the second wide angle portion 24. This wall element can advantageously support the control element 30. However, it is also possible to provide the control element 30 with another holder, possibly independent of the wall element 34.

[0042] Wall elements are also provided in the narrow corners. In the first narrow corner 26, this is the wall element 36. In the second narrow corner 28, this is the wall element 38. Advantageously, the wall elements in the narrow corners are even smaller in width than the wall elements in the wide corners. For example, in the context of the present invention, it is generally advantageous for such a wall element of the narrow corner to have a width less than 80% or also less than 50% or also less than 30% of the width of the wall element of the wide corner.

[0043] The first entrance opening 18 is closed by a first car door 40. The first car door 40 consists of two leaves, namely a first leaf 42 and a second leaf 44. The car door is intended to open towards the second wide angle portion 24. This means that when opening, the first leaf 42 moves a greater distance than the second leaf 44. Therefore, the first leaf 42 is often called a "fast" leaf.

[0044] The second entrance opening 20 is closed by a second car door 46. The car door has three leaves. The car door 46 includes a third leaf 48 and a fourth leaf 50. It also includes a fifth leaf 52. The leaves 48 and 50 should also open in the direction toward the second wide angle portion 24. Thus, the fourth leaf 50 is a fast leaf here. The fifth leaf 52 opens in the opposite direction, that is, toward the second narrow angle portion 28. The fifth leaf 52 is much shorter than the third leaf 48 and the fourth leaf 50.

[0045] Within the scope of the invention, it is generally advantageous to use a car door with three leaves, wherein the width of the third leaf is less than half or even less than one third of the width of the widest of the other two leaves.

[0046] Figure 2 Corresponding to Figure 1 The view of 1 shows an elevator car 10, but it is installed in the elevator shaft. For the sake of clarity, only the basic elements of the car 10 are shown, which again include the bottom plate 12 and the first car door 40 and the second car door 46.

[0047] The car 10 is surrounded by a first shaft wall 54 and a second shaft wall 56. Opposite the first shaft wall 54 is a third shaft wall 58 and a first shaft door 60. Opposite the second shaft wall 56 is a fourth shaft wall 62 and an adjacent second shaft door 64. The elevator car is suitable for various types of shafts, and here a shaft consisting of corner columns is shown, and corner columns 66A, 66B, 66C and 66D are shown. These corner columns are arranged in the corners of a square, so that the shaft has a square base. However, as explained, the base 12 is not square, but is spaced from the corners of the shaft in the corner area.

[0048] Thus, there is space for further equipment in the shaft in the wide corner of the car 10. A first guide post 70 is provided here, which is connected to the corner post 66D via a first connecting element 68. A guide post 72 is provided oppositely, which is connected to the corner post 66B via a connecting element 74. The guide posts each provide (generally within the scope of the invention) at least one guide rail. They can consist only of guide rails (e.g. flat bars) or can include further elements, for example, can be formed as T-beams. Therefore, the guide posts are often simply referred to as guide rails. However, it is advantageous that the guide posts are self-supporting elements that do not at least need to be supported by the shaft wall and that the guide posts are supported on the shaft floor.

[0049] Figure 3 from Figure 2 The selected viewing direction shows the car with the surrounding elevator shaft. Figure 2 The car in is shown with its doors closed, but Figure 3 The car door is shown open. To simplify the illustration, the shaft door, which is also usually provided, has been omitted.

[0050] The first access opening 18 is opened for entry by moving the leaves of the first car door, i.e. the first leaf 42 and the second leaf 44, towards the second wide angle portion 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 faces inwards towards the car. It can be seen that in this open arrangement or open position, the leaves utilize the free space generated between the car and the shaft wall, here in particular the third shaft wall 58. Thus, the leaves 42 and 44 are displaced into the area behind the wall element 34. They are also displaced out of the area of ​​the car floor 12. Thus, the leaves use an area that is located outside the car but does not extend very far into the shaft.

[0051] A corresponding solution creates the area of ​​the second access opening 20. Here, the third leaf 48 and the fourth leaf 50 are moved into the area of ​​the second wide corner 24 so that they are away from the second access opening 20. These leaves also use the free space behind the wall element 34 and are displaced so that their inner sides point toward the guide column 70.

[0052] The free space in the second wide angle 24 is used by both elements of the car and elements of the elevator system. The relevant car elements here are the leaves of the car door and the control element 30. Other elements required for the technical operation of the elevator are guide posts 70 and corresponding connecting elements 68.

[0053] Moreover, this dual use is in fact very efficient.The door leaf is moved into said free space so that the guide post 70 is on the inner side of the door leaf (ie on the side oriented towards the car).

[0054] The fifth leaf 52 of the door is moved into the region of the second narrow corner 28. It is now located behind the wall element 38. Thus, the free space between the car and the shaft can also be used for the door leaves in the region of the narrow corner, so that these door leaves can be moved into the open position in an advantageous manner and as far away from the second access opening as possible. It is also conceivable that not only the door leaves of the car use the free space in the wide corner, but also additional equipment of the car (such as additional control elements) or the shaft. In this regard, it is conceivable that further guide rods are also installed in the region of the narrow corner, or, for example, a shaft profiling system, with which the car height can be determined.

[0055] Figure 4An enlarged detail of the shaft structure in the region of a corner column 66D is shown. Such a corner column can be formed as a profiled column. This allows corresponding shaft walls, such as the third shaft wall 58 and the fourth shaft wall 62, to be well connected to and supported by the corner column 66D. The corresponding wall sections can easily be made of metal, such as aluminum, plastic or even glass. They can be provided with a suitable frame. Recesses can be provided for the corresponding connections. In the case of a shaft column with a substantially square profile, suitable connecting elements will therefore extend at right angles.

[0056] Additional connecting elements can be arranged between these connecting elements, for example at an angle of 45 degrees. These additional connecting elements can be used to connect to the technical components of the shaft. For example, here (not specified) a groove extending at an angle of 45 degrees is provided, which accommodates the connecting element 68. The connecting element 68 carries a guide post 70.

[0057] This enlarged view highlights how the arrangement of the corner posts and guide posts creates an area in which the door leaf can move to the open position. This area is shown shaded as area 76.

[0058] In summary, it can be seen how an elevator car and a corresponding passenger elevator can be constructed inexpensively and efficiently, which offers many advantages for wheelchair users.

[0059] Reference numerals list 10 cars 12 Bottom Plate 14 First side wall 16 Second side wall 18First entrance 20 Second entrance 22 first wide angle portion 24 Second widest angle 26 first narrow angle portion 28 Second narrow angle 30 control elements 32 wall elements 34 wall elements 36 wall elements 38 wall elements 40First car door 42 The first door 44 The Second Door 46 Second car door 48 The Third Door 50 The Fourth Fan 52 The Fifth Fan 54First shaft wall 56 Second shaft wall 58 Third shaft wall 60First shaft door 62 Fourth shaft wall 64 Second shaft door 66 corner posts 68 connection elements 70 guide pillars 72 guide pillars 74 Connecting elements

Claims

1. 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 capable of closing the access opening, wherein: The floor (12) extends in the floor area and is bounded by a plurality of edges, so 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 at least two wide corners in the area of ​​the other edges, namely a first wide corner (22) and a second wide corner (24), wherein the car door is movable in a 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), and the first leaf (42) has a front edge and an opposite rear edge oriented in the closing direction, and the second leaf (44) has a front edge and an opposite rear edge oriented in the closing direction, and the first leaf (42) moves beyond the second leaf (44) in the closing direction, wherein the second leaf (44) is adjacent to the first wide corner (22) when the car door is closed, characterized in that when the car door is open, at least the rear edge of the first leaf (42) is not located above the floor of the elevator car (10), but is located within the rectangle.

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

3. An elevator car (10) according to any one of the preceding claims, wherein: The base plate (12) extends within the base plate area and is bounded by six edges, such that four edges are located on the sides of a rectangle and two edges are positioned opposite each other, thereby bridging the corners of the rectangle and forming the first wide corner portion (22) and the second wide corner portion (24).

4. An elevator car (10) according to any one of the preceding claims, wherein: A control element (30) for the elevator car (10) is arranged at a first height in the region of the first wide angle section (22) or the second wide angle section (24), and an equivalently acting control element (30) is arranged at a second height, wherein the second height is lower than the first height.

5. Elevator car (10) according to any of the preceding claims, wherein The sliding door comprises a first leaf (42), a second leaf (44) and a third leaf (48), and a closing direction of the third leaf (48) is oriented opposite to the closing directions of the first leaf (42) and the second leaf (44).

6. Elevator car (10) according to any of the preceding claims, having two guide ears, each of which can cooperate with a guide rail, wherein A first guide lug is arranged in the first wide angle portion (22) and a second guide lug is arranged in the second wide angle portion (24), wherein when the car door is opened, at least the rear edge of the first leaf (42) is displaced behind the first guide lug in the opening direction.

7. Elevator car (10) according to any of the preceding claims, wherein The first leaf (42) has an inner side and an outer side, wherein the inner side faces the interior of the car in the closed position of the car door, and the inner side faces the first guide ear in the open position.

8. Elevator car (10) according to any of the preceding claims, wherein In the open position of the car door, the first guide ear is located between the inner side of the first leaf and the bottom plate (12) of the elevator car when projected onto a horizontal plane.

9. An elevator car (10) for a passenger elevator according to any of the preceding claims, the elevator car having a first entrance opening (18) and a first car door (40) capable of closing the first entrance opening (18), and having a second entrance opening (20) and a second car door (46) capable of closing the second entrance opening (20).

10. Elevator car (10) according to the preceding claim, wherein The first car door (40) is formed as a sliding door having a first leaf (42) and a second leaf (44), and the first leaf (42) has a front edge and an opposite rear edge oriented in the closing direction, and the second leaf (44) has a front edge and an opposite rear edge oriented in the closing direction, and the first leaf (42) moves beyond the second leaf (44) in the closing direction, wherein, when the car door is closed, the second leaf (44) is adjacent to the first wide angle portion (22), and wherein the second car door (46) is formed as a sliding door having a third leaf (48) and a fourth leaf (50), and the third leaf (48) has a front edge and an opposite rear edge oriented in the closing direction, and the fourth leaf (50) has a front edge and an opposite rear edge oriented in the closing direction, and the third leaf (48) moves beyond the fourth leaf (50) in the closing direction, wherein, when the car door is closed, the fourth leaf is adjacent to the second wide angle portion (24).

11. A passenger elevator having an elevator car (10), wherein: The passenger elevator has a travel shaft with a substantially rectangular base area, above which four shaft walls (54, 56, 48, 62) protrude to form four shaft corners, and the elevator car has four side walls extending substantially parallel to the four shaft walls, wherein the elevator car (10) is spaced apart from adjacent shaft corners in the area of ​​a first corner, and the elevator car has a car door, wherein the car door is formed as a sliding door with a first leaf and a second leaf, and the first leaf (42) has a front edge oriented in the closing direction and a corresponding The first sash (42) and the second sash (44) have a front edge oriented in the closing direction and an opposite rear edge and a vertical center axis centrally located between the edges, and the first sash (42) moves beyond the second sash (44) in the closing direction, wherein the second sash (44) is adjacent to the first wide corner portion (22) when the car door is closed, and characterized in that the center axis of the first sash (42) protrudes beyond the elevator car (10) when the car door is open.

12. Passenger elevator according to the preceding claim, wherein A first guide rail is arranged in one shaft corner and a second guide rail is arranged in an opposite shaft corner, wherein when the car door is opened, at least the rear edge of the first leaf (42) is displaced in the area between the first guide rail and the adjacent shaft corner.

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