Elevator car with means for evacuation and self-evacuation, and procedures for doing so

Abstract

The present invention relates to an elevator car (1) comprising: an interior (2), a roof (3) with a roof hatch (4), and a suspended ceiling (10) with a suspended ceiling hatch (11), wherein the roof hatch (4) forms a passage with the suspended ceiling hatch (10), wherein the suspended ceiling hatch (11) comprises a flap (11.1) which is connected to the suspended ceiling (10) by means of a hinge (19) and can be connected to the suspended ceiling (10) by means of a closure (20), wherein a first receptacle (22.1) is formed on the flap (11.1) and a second receptacle (22.2) is formed on the suspended ceiling (10), wherein a retaining means (21) for limiting the opening angle (Ω) is arranged between the first receptacle (22.1) and the second receptacle (22.2), wherein the retaining means (21) is provided for releasing at least a first pulling element. (24.1, 24.2) and wherein at least one traction element (24.1, 24.2) is accessible from the roof (3) and at least one traction element (24.1, 24.2) is accessible from the interior (2).

Description

Technical field

[0001] The present invention relates to a car for an elevator system, comprising an interior space for occupants, a walkable roof bounding the interior space in an upper direction with a roof hatch opening in the upper direction, and a suspended ceiling arranged below the roof with a suspended ceiling hatch opening in the lower direction. The present invention further relates to an elevator system comprising at least one vertically extending elevator shaft with multiple landing doors and the aforementioned car. The present invention also relates to a method for evacuating a person located in the aforementioned car and a method for self-evacuation from the aforementioned car in such an elevator system. Background of the invention

[0002] Elevator systems for the vertical and / or horizontal transport of people and / or goods are an integral part of modern residential and commercial buildings. A typical elevator system comprises one or more elevator shafts in which one or more cars are moved between landing positions by means of drives. Drives used include, for example, driven pulleys that power one or more suspension elements, or linear actuators.

[0003] It is standard practice in such elevator systems to provide measures for evacuating people from a car if the car has malfunctioned in the elevator shaft. Access to the car is usually gained via the next higher landing position, through the roof of the car, and via a roof hatch provided in the roof. If a downward-opening suspended ceiling hatch, for example, with a downward-opening flap, is opened, care must be taken to ensure that no person standing below is struck and potentially injured.

[0004] In the case of so-called fire service elevators, which are also intended to be operated by firefighters in the event of a fire, self-evacuation must still be possible in the event of an accident.

[0005] The disadvantage of existing elevator cars is that they are not inherently suitable for use as fire service cars, as their current design has drawbacks that are not acceptable for all cars in elevator systems with multiple cars. Therefore, manufacturers must offer fire service cars as separate model series, incurring additional costs. One disadvantage, for example, is the limited interior space of existing fire service cars and the resulting reduced utilization of the elevator shaft.

[0006] EP 3 604 197 B1 discloses a car with an inwardly opening flap, whereby the opening process can be controlled from the roof by means of a strap.

[0007] JP 2001 171 932 A further discloses a car for an elevator system with a roof hatch and a folding ladder connected to the roof hatch for reaching the car roof from inside the car. Description of the invention

[0008] Starting from this situation, it is an object of the present invention to propose a lift carriage that is set up as a fire service lift carriage and in which the aforementioned disadvantages compared to a lift carriage not set up as a fire service lift carriage are avoided.

[0009] The object of the invention is achieved by the features of the independent main claims. Advantageous embodiments are specified in the dependent claims. Where technically feasible, the teachings of the dependent claims can be combined arbitrarily with the teachings of the main and dependent claims.

[0010] In particular, the problem is solved by a car for an elevator system, comprising: an interior space for persons, a roof bounding the interior space in an upper direction and accessible with a roof hatch that opens in the upper direction, and a suspended ceiling arranged below the roof with a suspended ceiling hatch that opens in a lower direction, wherein the roof hatch and the suspended ceiling hatch form a passage between the interior space and the roof, wherein the suspended ceiling hatch comprises a flap that is connected to the suspended ceiling on a first side by means of a hinge and can be detachably connected to the suspended ceiling on a second side by means of a closure, wherein a first receptacle is formed on the second side of the flap and a second receptacle is formed on the suspended ceiling.wherein, in a closed position of the flap, a releasable retaining means for limiting the opening angle of the flap is arranged between the first receptacle and the second receptacle, wherein the retaining means for releasing comprises at least a first pulling element, and wherein, in a limited open position of the flap limited by the retaining means, at least one pulling element is accessible from the roof and at least one pulling element is accessible from the interior. Advantageous aspects of the claimed invention are explained below, followed by a description of preferred modified embodiments of the invention. Explanations, particularly regarding advantages and definitions of features, are essentially descriptive and preferred examples, but not limiting ones. If an explanation is limiting, this will be expressly stated.

[0011] Where elements are designated by means of a numbering system, for example, "first element," "second element," and "third element," this numbering is solely for differentiation purposes and does not imply any dependency between the elements or a mandatory sequence. This means, in particular, that a device or method does not need to have a "first element" to have a "second element." The device or method can also have a "first element" and a "third element" without necessarily having a "second element." Multiple units of an element with a single numbering system are also possible, for example, multiple "first elements."

[0012] An elevator system comprises, in particular, at least one vertically extending elevator shaft with multiple landing doors, especially leading to several floors of a building. The elevator car then includes a car door, for example, at the front. A car door is designed to interact with a landing door in a landing position of the elevator car to provide access to the car, which, in normal operation, transports persons or goods between landing positions. The elevator car may also have multiple car doors, for example, on the front wall and on one side or on both sides, to interact with landing doors on multiple sides of the elevator shaft.

[0013] The elevator car is designed in particular as a cabin with four side walls, a floor and the roof enclosing the interior, with one or more side walls being designed as elevator car doors.

[0014] The roof hatch and the suspended ceiling hatch are designed as rectangular openings with dimensions sufficient for a person to climb through. Preferably, the roof hatch and the suspended ceiling hatch are approximately the same size and aligned with each other. If the roof hatch is openable, it is provided with a flap or a sliding or completely removable cover. Opening is achieved by pivoting the flap upwards or by lifting the cover and then sliding it to the side or removing it completely. The suspended ceiling hatch can be opened by means of its associated flap, which can be pivoted downwards into the interior.

[0015] A closure is understood to be a device by means of which the second side of the flap can be temporarily and therefore releasably held to the suspended ceiling.

[0016] In particular, the closure forms a form-fit and / or force-fit connection between the flap and the suspended ceiling.

[0017] A receptacle is to be understood as one in which the retaining element can be held to the receptacle in the broadest sense by force-fit and / or form-fit. In particular, the receptacle is formed as a recess or projection, for example as a slot, groove, hook, or the like. Insofar as the retaining element is arranged between the first receptacle and the second receptacle, it is connected to both receptacles by force-fit and / or form-fit.

[0018] In the closed position, the flap lies within the suspended ceiling hatch, forming a continuous plane with the suspended ceiling. The corresponding parts of the closure, one for the flap and one for the suspended ceiling, are positioned relative to each other to allow the closure to be achieved. In the partially open position, the flap opens to the angle defined by this limit. The first retaining element is dimensioned such that the first and second receptacles (or the second side of the flap) and the suspended ceiling can be spaced apart before the retaining element prevents further separation.In particular, the opening angle determined by the holding device in the limited open position is chosen / determined such that the flap only projects into the interior to a certain clear height which is sufficient to avoid contact with a person of normal body size, while the opening angle is sufficient to allow access to a pulling device from inside the interior.

[0019] A holding element is typically made of a textile, plastic, metal, or a similarly rigid material, such as a band, wire, rod, or the like. A pulling element is a means that, when manually pulled by a person, causes the holding element to be released, such as a pull cord or rope.

[0020] The solution to the problem with the aforementioned elevator car now comprises the technical instruction that, during evacuation from the roof, the hatch opening into the interior is initially opened to a partially open position. This allows occupants of the elevator car to become aware of the impending full opening of the hatch and to recognize how they need to position themselves in relation to the hatch in the interior to avoid contact when it is fully opened. In this way, occupants are not surprised by the hatch being fully opened when it is opened from the roof by a person standing on the roof during an evacuation.While the hatch is in the partially open position, direct communication is possible between the person on the roof and the people inside, and / or the people inside can move out of the way before the locking mechanism is released and the hatch is fully opened. Therefore, the locking mechanism reduces or eliminates the risk of injury from the hatch during an evacuation by a person on the roof. At the same time, the locking mechanism is designed so that it can also be opened from inside the car using a pull cord, making the car suitable for the self-evacuation of a person inside. Consequently, the car can also be used as a fire service car without any structural modifications to the locking mechanism or the suspended ceiling hatch, and without any disadvantages that would impair its usability.

[0021] In one embodiment, the holding device comprises only the first traction element, which is arranged such that it is accessible from both the roof and the interior. For example, the first traction element can be arranged so that it is accessible and can be grasped from the roof when the flap is closed, before the flap is moved to the partially open position. Otherwise, when the flap is moved to the partially open position, the traction element may slip or fall off, becoming accessible from the interior. In particular, the first traction element remains accessible from the roof even in the partially open position, although the slippage or falling of the traction element may slightly reduce accessibility compared to the closed position of the flap.

[0022] In an alternative embodiment of the elevator car, the holding device for releasing the flap further comprises a second pulling device, wherein, in the partially open position of the flap limited by the holding device, the first pulling device is accessible from the roof and the second pulling device is accessible from the interior. Thus, in every position of the flap, one pulling device is easily and conveniently accessible from the roof and the other from the interior.

[0023] In one embodiment of the elevator car, the holding element has a fixing element for determining its position on the first and / or second mounting point. This makes it easy to position the first traction element(s) for access from the roof or from inside the car, ensuring in particular that the holding element does not slip out of position. In a preferred embodiment, the fixing element is designed as a loop and encircles the first or second mounting point. It is then particularly simple in design and can be attached to the mounting points.

[0024] In another embodiment of the elevator car, the retaining element is designed as a tab. A tab can be easily held between the first and second receptacles, in particular by wrapping around the receptacles or parts thereof. Furthermore, a tab can be folded when the hatch is closed, thus preventing it from blocking or obstructing adjacent components of the elevator car. Simultaneously, a retaining element designed as a loop can unfold when the hatch is partially opened, and its fully extended position limits the opening angle.

[0025] In one embodiment of the aforementioned design, the flap is formed from a first partial flap and a second partial flap, wherein, in the closed or partially open position of the flap, a first region of the first partial flap is connected to a first region of the second partial flap, and a second region of the first partial flap is connected to a second region of the second partial flap. For example, the flap is formed from a first band with two hook-and-loop fastener areas as the first partial flap and a second band with two corresponding hook-and-loop fastener areas as the second partial flap, the two bands together forming the loop. In an embodiment with two tensioning elements, the first regions can then easily interact with the first tensioning element and the second regions with the second tensioning element to arrange the tensioning elements separately from each other on the holding element.to allow attacks so that the respective accessibility of the traction means is achieved independently of each other.

[0026] In an alternative embodiment, the flap is formed in one piece, wherein, in the closed or partially open position of the flap, a first region of the flap is connected to a second region of the flap. For example, the flap is formed from a band with two corresponding hook-and-loop fastener areas, which together form the loop. In an embodiment with only one tension element, the retaining element is thus simply designed.

[0027] In another embodiment of the elevator car, the first receptacle and / or the second receptacle are designed as slots for guiding the retaining element. This embodiment represents a particularly simple solution for the receptacles, in which the arrangement of the retaining element is simple by pulling it through the slots, a secure positive fit is ensured in all directions between the receptacle and the retaining element, and in which the retaining element can be easily released from the receptacle after being released by the first pulling element or one of the pulling elements, in order to fully open the hatch.

[0028] In a further embodiment, the elevator car also features a variable-size ladder, in particular an extendable telescopic ladder, wherein the ladder is arranged entirely between the roof and the suspended ceiling hatch in the area of ​​the passageway in a storage position. Insofar as the ladder is variable-size, it comprises a mechanism by which it can be brought into a compact arrangement not intended for use and into an expanded arrangement for use. In particular, segments of the ladder are folded or moved relative to one another for this purpose. It is in the interest of the present invention that the ladder is always formed in one piece, i.e., in every arrangement and between two arrangements, and that segments do not need to be separated or joined together. In particular, the ladder is designed and configured to be in the compact arrangement in the storage position.The elevator car is designed so that the ladder is stored in a compact arrangement.

[0029] The storage position is preferably designed such that the ladder is firmly held to the elevator car in this position, preventing any collision with other parts of the elevator system during the elevator car's movement. Insofar as the ladder in the storage position is located entirely between the roof and the suspended ceiling hatch in the area of ​​the passageway, it is understood that no part of the ladder projects above the plane of the roof or the plane of the suspended ceiling.

[0030] The ladder can be advantageously used both for evacuation by a person on the roof and for self-evacuation by a person inside, as required for a fire service elevator cage. With the roof hatch or suspended ceiling hatch open, it is accessible from both the roof and the interior. The ladder is positioned in the space between the roof and the suspended ceiling in such a way that it does not impair the usability of the elevator cage, particularly with regard to the available interior space.

[0031] In one embodiment of the aforementioned design, the pull cord, accessible from the roof, is held in the partially open position of the hatch on the ladder or the suspended ceiling hatch for releasing the retaining device. If the ladder is then held on the roof and / or suspended ceiling in such a way that its storage position is not affected by opening the roof hatch and / or the suspended ceiling hatch, the pull cord is located in an area that is particularly easy to access from the roof. Furthermore, the easily accessible and thus highly visible pull cord makes it readily and intuitively clear to a person standing on the roof how to operate the suspended ceiling hatch to open it further, which is particularly advantageous in the event of a stressful evacuation.

[0032] In another embodiment of the elevator car, a pull cord accessible from the interior hangs down into the interior when the hatch is partially open. For example, when the hatch is closed, the cord is designed so that it falls through the opening when the hatch is moved to the partially open position. Because the pull cord hangs down, it is easily accessible and operable for anyone inside the car. Furthermore, the hanging cord makes it readily and intuitively clear to the person how to operate the suspended ceiling hatch to open it further, which is particularly advantageous in the event of a stressful evacuation.

[0033] In another embodiment of the elevator car, the locking mechanism includes a lock accessible from both the interior and the roof. This allows for both evacuation by a person standing on the roof and the self-evacuation required for fire service elevator cars, as the lock can be operated by the same person. In particular, the lock and an emergency release for a landing door, or multiple emergency releases for landing doors, are designed to be operated with the same key. Emergency releases for landing doors are usually standardized, and corresponding keys, such as a triangular key, are typically carried by firefighters or maintenance personnel, whereas a typical elevator user does not have such a key.By taking over the emergency release key for the lock of the suspended ceiling hatch, it can therefore be ensured that a person carrying out the evacuation is highly likely to have the correct key, while at the same time the hatches and landing doors are protected against misuse.

[0034] The task is further solved by an elevator system comprising: at least one vertically extending elevator shaft with several landing doors and a previously described elevator car. The advantages previously described with regard to the elevator car can be achieved accordingly with this elevator system.

[0035] The problem is further solved by a method for evacuating a person located in a previously described elevator car in a previously described elevator system, comprising the following steps: accessing the roof from an upper landing position, opening the roof hatch, opening the hatch from the closed position to the partially open position limited by the holding device, releasing the holding device by means of a pulling device, opening the hatch from the partially open position to a fully open position, and evacuating the person through the passage. Advantageously, all the means necessary for the method are already present in the previously described elevator car without adversely affecting the usability of the elevator car, and the method is advantageously simple, safe, and particularly intuitive to perform.

[0036] The problem is also solved by a self-evacuation method from a previously described elevator car in a previously described elevator system, comprising the following steps: opening the hatch from the closed position to the partially open position limited by the holding device, releasing the holding device by means of a pulling device and opening the hatch from the partially open position to a fully open position, opening the roof hatch, and self-evacuation of the person through the passageway. Advantageously, the previously described elevator car already provides all the necessary means for this method without adversely affecting the usability of the elevator car, and the method is advantageously simple, safe, and particularly intuitive to perform.

[0037] The particular advantage of both methods is that they can be carried out using the same means. It is preferred that the sequence of process steps can be varied, unless a specific sequence is technically required. However, the aforementioned sequence of process steps is particularly preferred. Brief description of the drawings

[0038] The invention is explained in more detail below with reference to the accompanying drawings and preferred embodiments. The term "figure" is abbreviated as "Fig." in the drawings.

[0039] The drawings show Fig. 1 a perspective view of an elevator car according to a preferred embodiment of the invention; Fig. 2 a perspective view of an elevator car according to Fig. 1 in an elevator shaft; Fig. 3 A perspective detail view of a roof hatch or a suspended ceiling hatch in the closed position of the flap in a car according to Fig. 1; Fig. 4 a perspective detail view of a suspended ceiling hatch in the partially open position of the flap in a car according to Fig. 1; Fig. 5 a side view of a suspended ceiling hatch in the partially open position of the hatch in a car according to Fig. 1; Fig. 6 A side view of part of a suspended ceiling hatch in the partially open position of the flap in a car according to a further embodiment. Fig. 7 a diagram of a process according to one aspect of the invention; and Fig. 8 a diagram of a method according to a further aspect of the invention. Detailed description of the drawings

[0040] The described embodiments are merely examples that can be modified and / or supplemented in various ways within the scope of protection defined by the claims. Each feature described for a specific embodiment can be used independently or in combination with other features in any other embodiment. Each feature described for an embodiment of a particular claim category can also be used analogously in an embodiment of a different claim category.

[0041] The Fig. 1 and Fig. Figures 2 show a car 1 with an interior 2, where the car 1 is in Fig. Figure 1 is shown without a car door to make the interior 2 visible. The interior 2 is bounded in an upper direction O by a walkable roof 3, which has a roof hatch 4 that can be closed by means of a flap 4.1 shown open. A balustrade 5 is also arranged on the roof 3 to provide fall protection when walking on the roof 3. Fig. Figure 2 shows the car 1 in an elevator shaft 6, which has a landing position 7 with a landing door (not shown, but which is present). A breakdown situation is depicted in which the car 1 is stranded below the landing position 7, i.e., it is immobilized in the elevator shaft 6. The elevator shaft 6 and the car 1 together form an elevator system 1.1.

[0042] In the Fig. 1 and Fig. Figure 2 shows a telescopically designed ladder 8 in two operating positions. Fig. Figure 1 shows a first usage position in which the ladder 8 is arranged between a floor 9 of the interior space 2 and the roof hatch 4, so that a person can use the ladder 8 to get from the interior space 2 to the roof 3. Fig. Figure 2 shows a second operating position in which the ladder 8 is positioned between the roof 3 and the landing position 7, allowing a person to reach the landing position 7 from the roof 3 using the ladder 8. In the first operating position, the ladder 8 is largely extended, while in the second operating position, it is largely compressed. Depending on the distance between the roof 3 and the landing position 7, the ladder 8 may also be partially or fully extended in the second operating position.

[0043] The Fig. Figure 3 shows the ladder 8 in a storage position with the roof hatch 4 open from above. The elevator car 1 has a suspended ceiling 10 in interior 2, which has a suspended ceiling hatch 11 that can be closed by means of a flap 11.1. The flap 11.1 can be opened downwards in the direction U. The roof hatch 4 and the suspended ceiling hatch 11 together form a passage between interior 2 and the accessible roof 3. The ladder 8 is positioned in its storage position between the roof 3 and the suspended ceiling 10 and is fully compressed.

[0044] At a first stopping point 12.1, which is in Fig. 3 and further in the Fig. 4 and Fig. As shown in Figure 5 in the storage position of the ladder 8, the ladder 8 rests with its uppermost rung 13 in a receptacle 14 and is held in the receptacle 14 by means of a retaining element 15.1 designed as a releasable loop. The receptacle 14 is attached to the roof 3. The ladder 8 is thus releasably and rotatably held on the receptacle 14. At a second retaining point 12.2, which is located in the Fig. Figures 3 to 5 show the ladder 8 in its storage position. The ladder 8 is held to the roof 3 by means of a retaining element 15.2 designed as a releasable loop, with its lowest rung 16 being attached. Fig. Figures 3 to 5 also show a retaining element 15.3, also designed as a releasable loop, by means of which a rung 17 of the ladder 8 is held against the uppermost rung 13. The extendable length of the ladder 8 is thus limited according to the height difference between the ground 9 and the roof 3.

[0045] Fig. Figure 3 shows the closed position of flap 11.1, while the Fig. 4 and Fig. Figure 5 shows the partially open position of the flap 11.1, which is shown in simplified form. The flap 11.1 is pivotally held on a first side 18.1 by means of a hinge 19 on the suspended ceiling 10. A closure 20 is provided on a second side 18.2, by means of which the flap 11.1 can be held on the suspended ceiling 10. In the partially open position, the opening angle Ω of the flap 11.1 is limited by a retaining element 21 designed as a loop. The retaining element 21 is held between a first receptacle 22.1, designed as a slot, associated with the flap 11.1, and a second receptacle 22.2, also designed as a slot, associated with the suspended ceiling 10.

[0046] In the Fig. 4 and Fig. In the embodiment shown in Figure 5, the retaining element 21 is formed from a first partial tab 21.1, designed as a band, and a second partial tab 21.2, also designed as a band, which interact in first areas 23.1 and second areas 23.2, for example, by means of hook-and-loop fasteners. A first tension element 24.1 and a second tension element 24.2 are further formed on the retaining element 21 by the partial tabs 21.1 and 21.2. The first tension element 24.1 is particularly easily accessible from the roof or the roof hatch 4 and is specifically designed to be grasped when the hatch 11.1 is closed and held in place when the hatch 11.1 is opened to the partially open position. Alternatively, the first tension element 24.1 can also be attached to the ladder 8 or the suspended ceiling hatch 11 in the position shown in Figure 5. Fig. The second tensioning element 24.2 is held in the position shown in Figure 4. It is accessible from the opening angle Ω and thus from the interior 2. The second tensioning element 24.2 also serves as a fixing element and wraps around the first receptacle 22.1, preventing the holding element 21 from slipping on the receptacles 22.1 and 22.2, thus ensuring that the tensioning elements 24.1 and 24.2 remain securely attached to the roof 3 and the interior 2.

[0047] Fig. Figure 6 shows an alternative embodiment of the retaining element 21, wherein the retaining element 21 is formed from a single band that forms a tab within itself. For this purpose, the band has a first region 23.1 and a second region 23.2, each of which has corresponding parts of a hook-and-loop fastener and interacts with each other. The first region 23.1 is formed at one end of the retaining element 21, with a portion of the retaining element 21 extending beyond the second region 23.2 and forming a first tension element 24.1. In the closed position of the flap 11.1, the first tension element 24.1 rests on the flap and is designed to be grasped in the closed position and held in place when the flap 11.1 is opened to the partially open position. If the flap 11.1 is opened from the interior 2 and is therefore not held on the roof side, the first tension element 24.1 falls away.1 down into the interior 2 and can then be operated from there to release the holding device 21.

[0048] Fig. Figure 7 schematically shows a procedure 30 for the evacuation of a person in a car 1 according to the Fig. The evacuation procedure involves a person located at elevator installation 1.1. In a first step 31, a person carrying out the evacuation enters the roof 3 from a landing position 7 located above the elevator car 1. In a second step 32, the person opens the roof hatch 4 or the flap 4.1. In a third step 33, the person opens the suspended ceiling hatch 11 or the flap 11.1 from the closed position to the partially open position limited by the holding device 21. In a fourth step 34, the person releases the holding device 21 by means of a pulling device 24.1, 24.2 and opens the suspended ceiling hatch 11 or the flap 11.1 from the partially open position to a fully open position. In a final fifth step 35, the person is evacuated through the passageway.

[0049] Fig. Figure 8 schematically shows a procedure 40 for self-evacuation from an elevator car 1 according to the Fig.Steps 1 to 5 of an elevator system 1.1. In a first step 41, the suspended ceiling hatch 11 or the flap 11.1 is opened from the closed position to the partially open position limited by the holding device 21. In a second step 42, the holding device 21 is released by means of a pulling device 24.1, 24.2, and the suspended ceiling hatch 11 or the flap 11.1 is opened from the partially open position to a fully open position. In a third step 43, the roof hatch 4 or the flap 4.1 is opened. In a final fourth step 44, the person self-evacuates through the passage. Reference symbol list 1 elevator car 1.1 Elevator system 2 Interior of the elevator car 3 Roof of the elevator car 4 roof hatches 4.1 Roof hatch flap 5 balustrade 6 elevator shaft 7 Landing position 8 ladders 9 Floor of the elevator car 10 Suspended ceiling 11 Suspended ceiling hatch 11.1 Hatch of the suspended ceiling 12.1 First stop 12.2 second stopping point 13 top rungs of the ladder 14th entry 15.1 Holding devices 15.2 Holding devices 15.3 Holding devices 16 lowest rung of the ladder 17 rungs of the ladder 18.1 first page 18.2 second page 19 hinge 20 Closure 21 Holding devices 21.1 first partial flap 21.2 second partial flap 22.1 first recording 22.2 second recording 23.1 first area 23.2 second area 24.1 first traction element 24.2 second traction element 30 methods for evacuating a person 31 First step of the procedure - Accessing the roof 32. Second step of the procedure - Opening the roof hatch 33 Third step of the procedure - Opening the flap to the partially open position 34 Fourth step of the procedure - releasing the holding device by means of the first pulling device and opening the flap to the fully open position 35. Fifth step of the procedure - Evacuating the person 40 self-evacuation methods 41 First step of the procedure - Opening the flap to the partially open position 42 Second step of the procedure - releasing the holding device by means of the second pulling device and opening the flap to the fully open position 43 Third step of the procedure - Opening the roof hatch 44 Fourth step of the procedure - Self-evacuation of the person O upper direction U downward direction Ω Opening angle QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] EP 3 604 197 B1

[0006] JP 2001 171 932 A

[0007]

Claims

[1] Car (1) for a lift installation (1.1), comprising: an interior space (2) for the stay of persons; a roof (3) which delimits the interior space (2) in an upper direction (O) and is accessible, with a roof hatch (4) which can be opened in the upper direction (O); and a suspended ceiling (10) arranged below the roof (3) with a suspended ceiling hatch (11) which can be opened in a lower direction (U); wherein the roof hatch (4) forms a passage between the interior space (2) and the roof (3) with the suspended ceiling hatch (11); wherein the suspended ceiling hatch (11) comprises a flap (11.1) which is connected to the suspended ceiling (10) on a first side (18.1) by means of a hinge (19) and is detachably connectable to the suspended ceiling (10) on a second side (18.2) by means of a closure (20); wherein a first receptacle (22.1) is formed on the second side (18.2) of the flap (11.1) and a second receptacle (22.2) is formed on the suspended ceiling (10); wherein, in a closed position of the flap (11.1), a releasable holding means (21) for limiting the opening angle (Ω) of the flap (11.1) is arranged between the first receptacle (22.1) and the second receptacle (22.2); wherein the holding means (21) has at least one first pulling means (24.1) for releasing; and wherein, in a limited open position of the flap (11.1) limited by the holding means (21), at least one pulling means (24.1, 24.2) is arranged to be accessible from the roof (3) and at least one pulling means (24.1, 24.2) is arranged to be accessible from the interior (2). [2] Elevator car (1) according to claim 1, wherein the holding means (21) further comprises a second pulling means (24.2) for releasing; and wherein in the limited open position of the flap (11.1) limited by the holding means (21), the first pulling means (24.1) is arranged to be accessible from the roof (3) and the second pulling means (24.2) is arranged to be accessible from the interior (2). [3] Car (1) according to claim 1 or 2, wherein the holding means (21) comprises a fixing element for determining the position of the holding means (21) on the first receptacle (22.1) and / or the second receptacle (22.2). [4] Car (1) according to claim 3, wherein the fixing element is designed as a loop and wraps around the first receptacle (22.1) or the second receptacle (22.2). [5] Car (1) according to one of the preceding claims, wherein the holding means (21) is designed as a tab. [6] Elevator car (1) according to claim 5, wherein the tab is formed from a first partial tab (21.1) and a second partial tab (21.2); and wherein in the closed position or the limited open position of the flap (11.1), a first region (23.1) of the first partial tab (21.1) is connected to a first region (23.1) of the second partial tab (21.2) and a second region (23.2) of the first partial tab (21.1) is connected to a second region (23.2) of the second partial tab (21.2). [7] Car (1) according to claim 5, wherein the tab is formed in one piece; and wherein in the closed position or the limited open position of the flap, a first region of the tab is connected to a second region of the tab. [8] Car (1) according to one of the preceding claims, wherein the first receptacle (22.1) and / or the second receptacle (22.2) is / are designed as slots for passing through the holding means (21). [9] Car (1) according to one of the preceding claims, further comprising: a variable-size ladder (8), in particular an extendable telescopic ladder; wherein the ladder (8) is arranged in a storage position entirely between the roof (3) and the suspended ceiling hatch (11) in the region of the passage. [10] Car (1) according to claim 9, wherein the traction means (24.1, 24.2) accessible from the roof (3) for releasing the holding means (21) is held on the ladder (8) or the suspended ceiling hatch (11) in the limited open position of the flap (11.1). [11] Car (1) according to one of the preceding claims, wherein the traction means (24.1, 24.2) accessible from the interior (2) hangs down into the interior (2) in the limited open position of the flap (11.1). [12] Car (1) according to one of the preceding claims, wherein the closure (20) comprises a lock accessible from the interior (2) and the roof (3). [13] Lift installation (1.1), comprising: at least one vertically extending elevator shaft (6) with a plurality of landing doors; and a car (1) according to one of the preceding claims. [14] Method (30) for evacuating a person located in a car (1) according to one of claims 1 to 9 in a lift installation (1.1) according to claim 13, comprising the steps: Entering the roof (3) from an upper landing position (7) (31); Opening the roof hatch (4) (32); Opening the flap (111) from the closed position to the limited open position (33) limited by the holding means (21); Releasing the holding means (21) by means of a pulling means (24.1, 24.2) and opening the flap (11.1) from the limited open position into a fully open position (34); and Evacuate the person through the passage (35). [15] Method (40) for self-evacuation from a car (1) according to one of claims 1 to 9 in a lift installation (1.1) according to claim 13, comprising the steps: Opening the flap (11.1) from the closed position to the limited open position (41) limited by the holding means (21); Releasing the holding means (21) by means of a pulling means (24.1, 24.2) and opening the flap (11.1) from the limited open position into a fully open position (42); Opening the roof hatch (4) (43); and Self-evacuation of the person through the passage (44).

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